AETERNOX
Access laboratory-grade hormone and metabolic testing designed for men. Private, precise, and built around what actually matters to your health.
Take control of your health with comprehensive testing at the best prices we've ever offered.
UKAS-accredited laboratories use clinical-grade equipment identical to NHS facilities
Every result reviewed by a GMC-registered doctor before being released to you
Easy-to-understand reports with reference ranges and explanations for each biomarker
Results typically available within 24-48 hours of your sample reaching the laboratory
Symptoms like fatigue, brain fog, weight gain, low mood, and declining performance are often dismissed, ignored, or misdiagnosed—leaving millions of men without answers.
These common symptoms can have many causes—but hormonal imbalances and nutritional deficiencies are often overlooked. Testing provides clarity.
Feeling tired despite adequate sleep
Difficulty concentrating or mental clarity
Gaining or losing weight without trying
Insomnia or poor quality sleep
Slower gym progress or longer recovery
Feeling flat, irritable, or unmotivated
Recognise any of these? A blood test can help identify potential underlying causes.
Find Your Panel View All TestsUnderstanding your health starts with understanding the landscape. Here's what the research shows.
Average testosterone levels in men decline by approximately 1% per year after age 30. Regular monitoring helps track your personal baseline.
40% of UK men admit to avoiding GP visits. Private testing provides an alternative entry point for understanding your health data.
Average NHS wait time for non-urgent blood tests. Our partner laboratories return results within 24-48 hours of receiving your sample.
Of premature deaths in men are linked to preventable causes. Early detection through regular blood testing can identify risk markers sooner.
Sources: NHS Digital, Men's Health Forum, British Journal of General Practice. Statistics are for educational purposes.
From order to results in four simple steps. No GP appointments, no waiting rooms, no hassle.
Select your panel online. Kit dispatched within 24 hours in discreet packaging.
Simple at-home collection. Follow the clear instructions included in your kit.
Drop in any postbox. Prepaid envelope and secure packaging included.
Results in 24-48 hours. Doctor-validated with clear explanations.
Your test kit arrives in plain, unmarked packaging with no indication of the contents. Everything you need for a successful sample collection is included.
Men from all walks of life who want to understand their health better. Here's who we typically help.
No time for GP appointments? Test at home on your schedule and get results delivered to your inbox.
Tracking progress and optimising performance. Understand how training affects your hormones and recovery.
Proactive about longevity and prevention. Regular testing to catch issues early and track trends over time.
Using supplements or compounds and need comprehensive monitoring. Non-judgemental testing for harm reduction.
Move through the range and watch your coverage grow — from essential hormones to the most comprehensive blood test on the UK market.
Essential hormone and health markers for baseline understanding.
Search any biomarker — testosterone, ALT, PSA, cortisol, ferritin — and see exactly which panels include it.
Everything you need to know about ordering, collection, and receiving your results.
54% of UK men say their first instinct when something's medically wrong is to ignore it and hope it goes away. Private testing removes the barriers to monitoring your health.
Over 1 in 5 UK adults have low vitamin D levels, which can affect testosterone production, mood, and immune function.
Both low and high iron can cause fatigue. Testing ferritin levels helps identify whether iron supplementation is needed—or should be avoided.
Thyroid dysfunction affects metabolism, energy, and weight. Symptoms often overlap with low testosterone, making testing essential for accurate answers.
Take control of your health with professional, confidential testing backed by UKAS accreditation.
From foundational biomarkers to advanced hormone optimization, access a panel for every stage of your health journey.
Essential hormone and health markers for baseline understanding.
Expanded testing including thyroid, metabolic, and inflammation markers.
Comprehensive monitoring for enhanced individuals and performance optimisation.
Advanced cardiovascular, metabolic and stress hormone profiling. No UK competitor offers this depth.
Our flagship: the most comprehensive blood testing on the UK market, with omega fatty acids, prostate markers and sports recovery analysis.
Our Elite panel offers 68 biomarkers - a depth of testing that simply doesn't exist anywhere else in the UK.
Beyond comprehensive hormones, liver and kidney function, Elite adds advanced cardiovascular risk markers (Apo A/B, hsCRP), diabetes screening (HbA1c, Glucose), stress hormones (Cortisol, DHEA-S), complete vitamin panel (B12, Folate), and detailed urinalysis - biomarkers that competitors simply don't offer together in a single test.
Morning matters: Men under 40 can see testosterone levels swing up to 35% between morning and afternoon. That's why we recommend testing before 10am for the most accurate baseline.
Take our 2-minute quiz to get a personalised recommendation based on your health goals, lifestyle, and what you want to learn.
Or continue scrolling to learn more about each panel in detail.
Each panel tests multiple categories of biomarkers. Here's what the different categories reveal about your health.
Testosterone (total & free), SHBG, oestradiol, prolactin, FSH, LH. Affects energy, mood, muscle mass, libido, and overall vitality.
TSH, Free T3, Free T4, and thyroid antibodies. Controls metabolism, energy production, weight regulation, and temperature.
ALT, AST, GGT, ALP, bilirubin, creatinine, eGFR, urea. Essential for monitoring organ health, especially with supplement use.
Full lipid profile (HDL, LDL, triglycerides), haematocrit, HbA1c, CRP. Assesses heart disease risk and blood health.
Answer a few quick questions to get a personalized panel recommendation.
Half of UK men with testosterone deficiency symptoms don't have a diagnosis—and 55% don't even recognise the symptoms. The right panel helps you understand what's really going on.
A few simple steps can significantly improve the accuracy and usefulness of your blood test results.
Testosterone peaks in the early morning and can drop 20-30% by afternoon. Morning testing gives you the most consistent baseline.
8-12 hours fasting (water is fine) ensures accurate glucose, lipids, and metabolic markers. Your last meal affects many readings.
Drink plenty of water. Dehydration can artificially concentrate your blood values and make sample collection harder.
Avoid heavy training 24-48 hours before. Exercise temporarily elevates CK, liver enzymes, and other markers.
Each panel provides insights into different aspects of your health. Here's what you'll learn.
Total and free testosterone, SHBG, and related markers that affect energy, mood, muscle mass, and overall vitality.
Thyroid function, blood glucose, and metabolic markers that influence weight, energy levels, and daily performance.
Liver function (ALT, AST, GGT), kidney markers (creatinine, eGFR), and prostate health (PSA) for comprehensive organ monitoring.
Full lipid profile, haematocrit, inflammation markers, and cardiac indicators for heart and blood vessel health assessment.
Every result is reviewed by a GMC-registered doctor before being released. Our laboratory partner holds UKAS accreditation (ISO 15189) for clinical testing.
Essential hormone and health markers for baseline understanding. Perfect for first-time testing.
Everything you need in one discreet package
Simple at-home finger prick collection. Upgrade to the Tasso+ device for a completely painless experience using gentle vacuum technology from your upper arm (+£15).
The primary male sex hormone responsible for muscle mass, bone density, fat distribution, red blood cell production, and sex drive. Essential baseline marker for any male health assessment. Normal range: 8.64-29 nmol/L.
The unbound, biologically active portion of testosterone available to your cells. Only 2-3% of total testosterone is free. Calculated from total testosterone, SHBG, and albumin levels. More clinically relevant than total testosterone alone.
A protein that binds to sex hormones, making them inactive. High SHBG means less free testosterone is available to your body, even with normal total testosterone levels. Important for understanding true androgen status.
Ratio of testosterone to SHBG, indicating bioavailable androgens. Useful when SHBG levels affect free testosterone calculations. Higher values indicate more available androgens for your body to use.
Pituitary hormone that signals the testes to produce testosterone. Essential for understanding whether low testosterone is due to testicular issues (primary) or pituitary/hypothalamic issues (secondary).
Pituitary hormone essential for sperm production. Works with LH to regulate male fertility and HPTA function. Elevated FSH can indicate testicular damage or primary hypogonadism.
Main protein made by the liver, essential for calculating free testosterone accurately. Also indicates nutritional status and liver synthetic function. Low levels may affect hormone calculations.
Follow these guidelines to ensure accurate results:
The Tasso+ device offers a pain-free alternative to traditional finger prick collection:
Your testosterone peaks at age 19, then drops about 1% every year after 30. By 60, you could have lost 30% of your baseline levels. Regular monitoring helps you understand your personal trajectory.
Plain packaging • Next-day dispatch • Free returns
Results delivered in 24-48 hours
Everything in Core, plus thyroid, vitamins, inflammation, and expanded metabolic testing.
Convenient finger prick collection. Upgrade to Tasso+ for painless vacuum collection from your upper arm (+£15).
The primary male sex hormone responsible for muscle mass, bone density, fat distribution, and sex drive. Naturally declines with age but low levels can occur at any age.
The biologically active portion of testosterone (2-3%). Only free testosterone can enter cells and produce effects. Calculated from total testosterone, SHBG, and albumin.
Protein that binds sex hormones, making them inactive. High SHBG reduces free testosterone availability even with normal total levels.
Pituitary hormone that stimulates testosterone production. Essential for HPTA function assessment.
Pituitary hormone essential for sperm production. Works with LH to regulate male fertility.
Primary oestrogen in men. Essential for bone health and libido. High levels can cause gynecomastia and water retention.
Pituitary hormone that affects testosterone and libido when elevated. High levels may cause sexual dysfunction.
Adrenal hormone precursor to testosterone and oestrogen. Declines with age. Important for energy, mood, and immune function.
Master regulator of thyroid function. High TSH indicates underactive thyroid; low TSH indicates overactive thyroid.
Main thyroid hormone that converts to active T3. Essential for metabolism and energy.
The most active thyroid hormone. Controls metabolic rate and fat burning.
Most specific liver enzyme. Elevated when liver cells are damaged from alcohol, medications, or fatty liver.
Enzyme in liver and muscle. Elevated after liver damage or intense exercise.
Sensitive to alcohol and bile problems. Often elevated before other markers as early warning.
Main protein made by the liver. Low levels indicate liver dysfunction or malnutrition.
Breakdown product of red blood cells. High levels cause jaundice.
Waste product from muscle metabolism. Main marker for kidney function.
Best overall measure of kidney function. Values below 60 indicate kidney disease.
Waste product from protein breakdown. Elevated with high protein intake or kidney issues.
Sum of all cholesterol types. Less important than individual components.
"Bad" cholesterol that deposits in artery walls. Major cardiovascular risk factor.
"Good" cholesterol that removes LDL from arteries. Protective against heart disease.
Fat in blood. Elevated by carbs and alcohol. Requires fasting for accuracy.
All "bad" cholesterol combined. Better predictor than LDL alone.
Key cardiovascular risk indicator. Target below 4.0.
Essential for bone health, immune function, and testosterone. Deficiency is very common in the UK.
Essential for energy and nerve function. Active B12 is more accurate than total B12.
Essential for DNA synthesis and red blood cell formation. Works with B12.
Best marker of total body iron stores. Low levels cause fatigue before anaemia develops.
Iron currently circulating in blood. Varies throughout the day.
Oxygen-carrying protein. Low indicates anaemia; elevated requires monitoring.
Percentage of blood occupied by red cells. Critical safety marker.
High-sensitivity inflammation marker and cardiovascular risk indicator.
3-month average blood sugar. Gold standard for diabetes screening.
Follow these guidelines:
An estimated 2.8 million Britons are living with an undiagnosed thyroid disorder. Symptoms often get mistaken for depression, aging, or just "feeling tired". Full thyroid testing can reveal what's really going on.
Comprehensive monitoring for enhanced individuals. Includes liver, kidney, full hormones, prostate, and critical organ health markers.
Enhanced Panel uses professional venous blood draw analysed by our UKAS-accredited laboratory partner for advanced biomarkers including liver enzymes (ALT/AST/GGT), oestradiol, prolactin, kidney function, and PSA. This medical-standard collection method provides the most accurate and reliable results for comprehensive health monitoring.
Collection Options: Partner clinics nationwide OR mobile phlebotomist (additional fee).
The primary male sex hormone responsible for muscle mass, bone density, fat distribution, red blood cell production, and sex drive. Essential baseline marker for male health assessment.
The biologically active portion of testosterone (2-3% of total). Only free testosterone can enter cells and exert effects. More clinically relevant than total testosterone alone.
Carrier protein that binds testosterone making it inactive. High SHBG reduces bioavailable testosterone even with normal total levels. Affected by thyroid, insulin, and liver health.
Primary oestrogen in men, converted from testosterone by aromatase. Essential for bone health, libido, and cardiovascular function. Imbalances can cause gynecomastia and water retention.
Pituitary hormone that signals the testes to produce testosterone. Essential for HPTA function assessment. Low LH with low testosterone indicates secondary hypogonadism.
Pituitary hormone essential for sperm production. Works with LH to regulate male fertility. Elevated FSH may indicate testicular damage.
Pituitary hormone that suppresses testosterone and libido when elevated. High levels can indicate pituitary tumour or dopamine imbalance. Affected by certain medications.
Adrenal androgen precursor. Declines with age. Supports energy, immune function, and can convert to testosterone. Low levels linked to fatigue and low libido.
Primary stress hormone. Chronically elevated cortisol is catabolic, breaking down muscle and promoting fat storage. Morning levels should be at their highest.
Master regulator of thyroid function from the pituitary. High TSH indicates underactive thyroid; low TSH indicates overactive. Critical for metabolism and energy.
Main thyroid hormone produced by the thyroid gland. Converts to active T3 in tissues. Essential for metabolism, energy, heart rate, and body temperature.
The most metabolically active thyroid hormone. Controls metabolic rate, fat burning, and energy. Low T3 syndrome is common in illness, dieting, and stress.
Antibodies attacking the thyroid. Elevated in Hashimoto's thyroiditis and Graves' disease. Can predict future thyroid dysfunction years before symptoms appear.
Another autoimmune thyroid marker. Together with TPO antibodies provides complete autoimmune thyroid screening. Often elevated in Hashimoto's disease.
Liver-specific enzyme released when liver cells are damaged. Most sensitive marker for liver injury from alcohol, medications, fatty liver, or hepatitis.
Enzyme found in liver and muscle. Elevated in liver damage and after intense exercise. AST:ALT ratio helps differentiate liver vs muscle origin.
Most sensitive marker for alcohol consumption and bile duct problems. Often elevated before ALT/AST - an early warning of liver stress.
Enzyme from liver and bone. Elevated in bile duct obstruction or bone disorders. Can help distinguish liver vs bone pathology with GGT.
Breakdown product of red blood cells processed by liver. High levels cause jaundice. Gilbert's syndrome causes harmless mild elevation in ~5% of population.
Main protein made by the liver. Indicates liver synthetic function and nutritional status. Used in free testosterone calculation. Low in chronic liver disease.
Combined albumin and globulin. Reflects liver function, immune status, and nutritional state. Dehydration can artificially elevate levels.
Muscle metabolism waste product filtered by kidneys. Main marker for kidney function. Naturally higher in muscular individuals and with creatine supplementation.
Best overall measure of kidney function. Values below 60 indicate chronic kidney disease. Calculated from creatinine, age, and sex. Target >90 for optimal function.
Protein breakdown waste product. Elevated with high protein intake, dehydration, or kidney dysfunction. Less specific than creatinine for kidney function.
Purine metabolism end product. High levels cause gout and kidney stones. Also linked to cardiovascular disease and metabolic syndrome. Target below 360 μmol/L.
Sum of all cholesterol fractions. Less important than ratios and individual components. Some very high total cholesterol is protective if HDL is high.
"Bad" cholesterol that deposits in artery walls causing atherosclerosis. Major modifiable cardiovascular risk factor. Target depends on overall risk profile.
"Good" cholesterol that removes LDL from arteries. Protective against heart disease. Higher is better - target >1.0 mmol/L for men. Exercise increases HDL.
Blood fats elevated by carbohydrates and alcohol more than dietary fat. High levels increase cardiovascular and pancreatitis risk. Fasting required for accuracy.
All atherogenic cholesterol combined (Total minus HDL). Better cardiovascular risk predictor than LDL alone. Target below 4 mmol/L for most adults.
Ratio of total to good cholesterol. Better predictor than absolute values. Target below 4.0 for men. Below 3.5 is optimal.
Counts actual atherogenic particles, not just cholesterol content. Most accurate cardiovascular risk marker. One ApoB per LDL particle. Target below 0.9 g/L.
Essential for bone health, immune function, mood, and testosterone production. Deficiency affects 50% of UK adults. Target 75-150 nmol/L optimal range.
Essential for energy, nerve function, DNA synthesis, and red blood cells. Active B12 measures usable form. Deficiency causes fatigue, neurological issues, and anaemia.
Essential for DNA synthesis, cell division, and red blood cells. Works with B12. Low levels increase homocysteine and cardiovascular risk.
Essential for 300+ enzymatic reactions including energy production, muscle function, and sleep. Deficiency common in athletes. Supports testosterone production.
Iron storage protein - best marker of total body iron. Low levels cause fatigue before anaemia. Also an acute phase reactant elevated in inflammation.
Iron circulating in blood bound to transferrin. Fluctuates daily - morning levels highest. Best interpreted with full iron panel.
Blood's capacity to bind iron. Elevated when body is iron-deficient. Helps distinguish iron deficiency from inflammation-related changes.
Percentage of transferrin bound to iron. Low in iron deficiency, high in iron overload. Important for haemochromatosis screening.
Oxygen-carrying protein in red blood cells. Low indicates anaemia. Can be elevated with testosterone use - monitor regularly.
Percentage of blood volume occupied by red cells. Elevated levels increase blood viscosity and clot risk. Critical safety marker - target below 52%.
Total number of red blood cells per litre. Low in anaemia, elevated in polycythaemia. Interpreted with haemoglobin and haematocrit.
Average red blood cell size. Low MCV suggests iron deficiency; high MCV suggests B12/folate deficiency. Helps identify anaemia cause.
Cells that form blood clots. Low counts increase bleeding risk; high counts increase clotting risk. Important for overall blood health assessment.
Sensitive inflammation marker and independent cardiovascular risk factor. Target below 1 mg/L optimal. Elevated in infection, injury, and chronic disease.
3-month average blood sugar marker. Gold standard for diabetes screening and monitoring. Target below 42 mmol/mol for non-diabetics. No fasting required.
Blood sugar after fasting. Screens for diabetes and prediabetes. Elevated levels indicate insulin resistance. Target below 5.5 mmol/L fasting.
Prostate health marker elevated in prostate cancer, enlargement, and infection. Recommended annually from age 50 (45 if higher risk). Avoid ejaculation 48hrs before test.
Unbound PSA fraction. Free:Total PSA ratio helps distinguish benign enlargement from cancer. Higher free PSA ratio is more reassuring.
Essential electrolyte for fluid balance, nerve function, and blood pressure. Imbalances can cause confusion, fatigue, and muscle cramps.
Critical for heart rhythm, muscle contraction, and nerve signals. Both high and low levels can be dangerous. Important to monitor with certain medications.
Critical preparation for accurate results:
80% of people with serious fatty liver disease don't know they have it. Your liver doesn't complain until it's too late. That's why comprehensive liver enzyme testing is included in the Enhanced panel.
Advanced cardiovascular, metabolic & stress hormone profiling. No UK competitor offers this depth of testing. Perfect for serious athletes and health optimizers.
The Elite Panel provides 68 biomarkers - 21% more than Medichecks' maximum of 56. (Verified January 2026 based on publicly available information) This level of comprehensive testing simply isn't available anywhere else in the UK market.
Complete hormone panel, full thyroid, liver & kidney function, iron studies, vitamin D, and comprehensive metabolic markers.
Comprehensive urine analysis for kidney function, UTI screening, and metabolic indicators.
The primary male sex hormone responsible for muscle mass, bone density, fat distribution, red blood cell production, and sex drive. Essential baseline marker for male health assessment.
The biologically active portion of testosterone (2-3% of total). Only free testosterone can enter cells and exert effects. More clinically relevant than total testosterone alone.
Carrier protein that binds testosterone making it inactive. High SHBG reduces bioavailable testosterone even with normal total levels. Affected by thyroid, insulin, and liver health.
Primary oestrogen in men, converted from testosterone by aromatase. Essential for bone health, libido, and cardiovascular function. Imbalances can cause gynecomastia and water retention.
Pituitary hormone that signals the testes to produce testosterone. Essential for HPTA function assessment. Low LH with low testosterone indicates secondary hypogonadism.
Pituitary hormone essential for sperm production. Works with LH to regulate male fertility. Elevated FSH may indicate testicular damage.
Pituitary hormone that suppresses testosterone and libido when elevated. High levels can indicate pituitary tumour or dopamine imbalance. Affected by certain medications.
Adrenal androgen precursor. Declines with age. Supports energy, immune function, and can convert to testosterone. Low levels linked to fatigue and low libido.
Primary stress hormone. Chronically elevated cortisol is catabolic, breaking down muscle and promoting fat storage. Morning levels should be at their highest.
Master regulator of thyroid function from the pituitary. High TSH indicates underactive thyroid; low TSH indicates overactive. Critical for metabolism and energy.
Main thyroid hormone produced by the thyroid gland. Converts to active T3 in tissues. Essential for metabolism, energy, heart rate, and body temperature.
The most metabolically active thyroid hormone. Controls metabolic rate, fat burning, and energy. Low T3 syndrome is common in illness, dieting, and stress.
Antibodies attacking the thyroid. Elevated in Hashimoto's thyroiditis and Graves' disease. Can predict future thyroid dysfunction years before symptoms appear.
Another autoimmune thyroid marker. Together with TPO antibodies provides complete autoimmune thyroid screening. Often elevated in Hashimoto's disease.
Liver-specific enzyme released when liver cells are damaged. Most sensitive marker for liver injury from alcohol, medications, fatty liver, or hepatitis.
Enzyme found in liver and muscle. Elevated in liver damage and after intense exercise. AST:ALT ratio helps differentiate liver vs muscle origin.
Most sensitive marker for alcohol consumption and bile duct problems. Often elevated before ALT/AST - an early warning of liver stress.
Enzyme from liver and bone. Elevated in bile duct obstruction or bone disorders. Can help distinguish liver vs bone pathology with GGT.
Breakdown product of red blood cells processed by liver. High levels cause jaundice. Gilbert's syndrome causes harmless mild elevation in ~5% of population.
Main protein made by the liver. Indicates liver synthetic function and nutritional status. Used in free testosterone calculation. Low in chronic liver disease.
Combined albumin and globulin. Reflects liver function, immune status, and nutritional state. Dehydration can artificially elevate levels.
Muscle metabolism waste product filtered by kidneys. Main marker for kidney function. Naturally higher in muscular individuals and with creatine supplementation.
Best overall measure of kidney function. Values below 60 indicate chronic kidney disease. Calculated from creatinine, age, and sex. Target >90 for optimal function.
Protein breakdown waste product. Elevated with high protein intake, dehydration, or kidney dysfunction. Less specific than creatinine for kidney function.
Purine metabolism end product. High levels cause gout and kidney stones. Also linked to cardiovascular disease and metabolic syndrome. Target below 360 μmol/L.
Sum of all cholesterol fractions. Less important than ratios and individual components. Some very high total cholesterol is protective if HDL is high.
"Bad" cholesterol that deposits in artery walls causing atherosclerosis. Major modifiable cardiovascular risk factor. Target depends on overall risk profile.
"Good" cholesterol that removes LDL from arteries. Protective against heart disease. Higher is better - target >1.0 mmol/L for men. Exercise increases HDL.
Blood fats elevated by carbohydrates and alcohol more than dietary fat. High levels increase cardiovascular and pancreatitis risk. Fasting required for accuracy.
All atherogenic cholesterol combined (Total minus HDL). Better cardiovascular risk predictor than LDL alone. Target below 4 mmol/L for most adults.
Ratio of total to good cholesterol. Better predictor than absolute values. Target below 4.0 for men. Below 3.5 is optimal.
Counts actual atherogenic particles, not just cholesterol content. Most accurate cardiovascular risk marker. One ApoB per LDL particle. Target below 0.9 g/L.
Essential for bone health, immune function, mood, and testosterone production. Deficiency affects 50% of UK adults. Target 75-150 nmol/L optimal range.
Essential for energy, nerve function, DNA synthesis, and red blood cells. Active B12 measures usable form. Deficiency causes fatigue, neurological issues, and anaemia.
Essential for DNA synthesis, cell division, and red blood cells. Works with B12. Low levels increase homocysteine and cardiovascular risk.
Essential for 300+ enzymatic reactions including energy production, muscle function, and sleep. Deficiency common in athletes. Supports testosterone production.
Iron storage protein - best marker of total body iron. Low levels cause fatigue before anaemia. Also an acute phase reactant elevated in inflammation.
Iron circulating in blood bound to transferrin. Fluctuates daily - morning levels highest. Best interpreted with full iron panel.
Blood's capacity to bind iron. Elevated when body is iron-deficient. Helps distinguish iron deficiency from inflammation-related changes.
Percentage of transferrin bound to iron. Low in iron deficiency, high in iron overload. Important for haemochromatosis screening.
Oxygen-carrying protein in red blood cells. Low indicates anaemia. Can be elevated with testosterone use - monitor regularly.
Percentage of blood volume occupied by red cells. Elevated levels increase blood viscosity and clot risk. Critical safety marker - target below 52%.
Total number of red blood cells per litre. Low in anaemia, elevated in polycythaemia. Interpreted with haemoglobin and haematocrit.
Average red blood cell size. Low MCV suggests iron deficiency; high MCV suggests B12/folate deficiency. Helps identify anaemia cause.
Cells that form blood clots. Low counts increase bleeding risk; high counts increase clotting risk. Important for overall blood health assessment.
Sensitive inflammation marker and independent cardiovascular risk factor. Target below 1 mg/L optimal. Elevated in infection, injury, and chronic disease.
3-month average blood sugar marker. Gold standard for diabetes screening and monitoring. Target below 42 mmol/mol for non-diabetics. No fasting required.
Blood sugar after fasting. Screens for diabetes and prediabetes. Elevated levels indicate insulin resistance. Target below 5.5 mmol/L fasting.
Prostate health marker elevated in prostate cancer, enlargement, and infection. Recommended annually from age 50 (45 if higher risk). Avoid ejaculation 48hrs before test.
Unbound PSA fraction. Free:Total PSA ratio helps distinguish benign enlargement from cancer. Higher free PSA ratio is more reassuring.
Essential electrolyte for fluid balance, nerve function, and blood pressure. Imbalances can cause confusion, fatigue, and muscle cramps.
Critical for heart rhythm, muscle contraction, and nerve signals. Both high and low levels can be dangerous. Important to monitor with certain medications.
Critical preparation for accurate results:
Primary protein component of HDL ("good cholesterol"). Apo A-I removes cholesterol from arteries and transports it to the liver for disposal. Higher levels are strongly protective against cardiovascular disease. More predictive than HDL alone.
Measures all atherogenic (plaque-forming) lipoprotein particles including LDL, VLDL, and Lp(a). Each Apo B molecule represents one atherogenic particle. Superior to LDL for predicting cardiovascular risk. Target: <90 mg/dL for optimal protection.
The most powerful predictor of cardiovascular disease risk - balances atherogenic particles (Apo B) against protective particles (Apo A-I). Lower is better. Optimal ratio is <0.6 for men. More predictive than any standard lipid ratio.
Ultra-sensitive inflammation marker that predicts cardiovascular disease risk independent of cholesterol. Measures low-grade systemic inflammation. Levels <1 mg/L are optimal, >3 mg/L indicate high cardiac risk. Also elevated in metabolic syndrome and autoimmune conditions.
Enzyme released when muscle tissue is damaged - skeletal or cardiac. Elevated after intense training (normal for athletes) or indicates rhabdomyolysis, heart attack, or myocarditis. Important for monitoring training load and cardiac health. Very elevated CK (>1000 U/L) can indicate serious muscle breakdown.
Heart-specific CK isoenzyme. While skeletal muscle damage raises total CK, CK-MB elevation specifically indicates cardiac muscle damage. Used to diagnose heart attacks and myocarditis. CK-MB >6% of total CK suggests cardiac origin. Critical for athletes using cardiotoxic substances.
Oxygen-carrying protein in muscle tissue. Rises within 1-3 hours after heart attack (earlier than troponin) making it valuable for early cardiac event detection. Also elevated in rhabdomyolysis. Very high levels can cause kidney damage. Essential early warning marker for serious athletes.
Blood sugar level after 8-12 hour fast. The foundation of metabolic health screening. Normal: <5.6 mmol/L, Prediabetes: 5.6-6.9 mmol/L, Diabetes: ≥7.0 mmol/L. Critical for detecting insulin resistance, diabetes risk, and metabolic syndrome. Essential baseline for performance optimization.
3-month average of blood glucose levels (glucose "sticks" to red blood cells over their 120-day lifespan). Gold standard for diabetes diagnosis and glucose control monitoring. Normal: <42 mmol/mol (6%), Prediabetes: 42-47 mmol/mol, Diabetes: ≥48 mmol/mol. Superior to single glucose measurement for assessing long-term metabolic health.
Waste product from purine breakdown. High levels cause gout (crystal deposits in joints) but also indicate fructose overconsumption, kidney dysfunction, and metabolic syndrome. Elevated uric acid predicts cardiovascular disease and type 2 diabetes. Paradoxically acts as antioxidant at normal levels. Optimal: 3.5-5.5 mg/dL.
Primary stress hormone produced by adrenal glands. Follows circadian rhythm (highest morning, lowest evening). Chronically elevated cortisol is catabolic: breaks down muscle, stores fat, suppresses immune function, impairs memory. Low cortisol indicates adrenal insufficiency or burnout. Critical for assessing training stress, recovery capacity, and HPA axis function.
Abundant adrenal hormone and testosterone precursor. Has anti-aging, anti-inflammatory, and neuroprotective effects. DHEA opposes cortisol's catabolic effects. Declines 80% from age 25 to 75. Low DHEA-S with high cortisol indicates chronic stress and accelerated aging. Optimal ratio DHEA:Cortisol is 10:1 or higher. Important for longevity optimization.
Measures body's total antioxidant capacity - the combined effect of all antioxidants (vitamins C, E, glutathione, uric acid, etc.) working together. Reflects ability to neutralize free radicals and prevent oxidative stress. Low TAS indicates increased oxidative damage to cells, DNA, and tissues. Critical for athletes (intense training increases oxidative stress) and longevity optimization.
Essential for red blood cell formation, neurological function, and DNA synthesis. Deficiency causes pernicious anemia, neuropathy, cognitive decline, and elevated homocysteine (cardiovascular risk). Common in vegans (no plant sources), elderly, and those with malabsorption. Optimal: >400 pmol/L. Active B12 (holotranscobalamin) is more sensitive marker than total B12.
B-vitamin essential for DNA synthesis, red blood cell production, and homocysteine metabolism. Works synergistically with B12. Deficiency causes macrocytic anemia, elevated homocysteine (heart disease risk), and neural tube defects in pregnancy. Critical for rapidly dividing cells (gut lining, hair, nails). MTHFR genetic variants impair folate metabolism - 40% of population affected. Optimal: >10 ng/mL.
General inflammation marker produced by liver in response to infection, injury, or chronic disease. Rises within hours of inflammation onset. <3 mg/L is normal, 3-10 mg/L indicates moderate inflammation, >10 mg/L suggests significant acute inflammation or infection. Useful for detecting infections, monitoring chronic inflammatory conditions, and assessing cardiovascular disease risk (combined with hs-CRP).
80% of people with serious fatty liver disease don't know they have it. Your liver doesn't complain until it's too late. That's why comprehensive liver enzyme testing is included in the Enhanced panel.
Advanced cardiac, stress, and recovery markers for peak performance optimization.
Comprehensive data for detailed health tracking and optimization strategies.
Critical organ protection monitoring with advanced cardiac and metabolic markers.
Maximum insight into cardiovascular health, stress response, and metabolic function.
Venous blood draw • Results in 3-5 working days
The most comprehensive testing available. All 44 Enhanced biomarkers + omega fatty acids, advanced prostate, and sports recovery markers.
The Ultimate Panel uses professional venous blood draw to deliver the highest accuracy for advanced biomarkers including omega fatty acid profiling, advanced prostate markers (Free PSA), and sports recovery markers (CK, LDH). Clinical-grade testing for the most comprehensive health insights.
The primary male sex hormone responsible for muscle mass, bone density, fat distribution, red blood cell production, and sex drive. Naturally declines with age, but low levels can occur at any age.
The unbound, biologically active portion of testosterone. Only 2-3% of testosterone is free and available to cells. Calculated from total testosterone, SHBG, and albumin levels.
A protein that binds to sex hormones, making them inactive. High SHBG reduces free testosterone availability. Important for understanding true hormone status.
The primary oestrogen in men. Essential for bone health, libido, and cognitive function. High levels can cause gynecomastia and water retention. Often elevated with exogenous testosterone use.
Pituitary hormone that stimulates testosterone production in the testes. Suppressed during exogenous testosterone use. Essential for assessing HPTA function and recovery.
Pituitary hormone essential for sperm production. Suppressed during exogenous testosterone use. Critical marker for fertility assessment and HPTA recovery monitoring.
Pituitary hormone that can affect testosterone and libido when elevated. Can be raised by certain compounds, stress, or pituitary issues. High levels may cause sexual dysfunction.
Adrenal hormone and testosterone precursor. Declines naturally with age. Important for energy, immune function, and overall hormonal balance.
The primary stress hormone. Chronically elevated cortisol is catabolic, breaking down muscle and promoting fat storage. Important for recovery assessment.
Key recovery marker showing anabolic vs catabolic balance. Low ratio indicates overtraining or poor recovery. More sensitive to training stress than either hormone alone.
Growth hormone mediator essential for muscle growth, recovery, and tissue repair. Reflects growth hormone status. Important anabolic marker for athletes.
Ratio of testosterone to SHBG, indicating bioavailable androgens. Useful when SHBG levels affect free testosterone calculations. Higher values indicate more available androgens.
Pituitary hormone that regulates thyroid function. High TSH indicates underactive thyroid; low TSH indicates overactive thyroid. Critical for metabolism assessment.
The main thyroid hormone produced by the thyroid gland. Converts to the more active T3. Essential for metabolism, energy, and body temperature regulation.
The most active thyroid hormone. Controls metabolic rate, fat burning, and energy levels. Low T3 can cause fatigue, weight gain, and cold intolerance.
Antibodies against thyroid peroxidase. Elevated levels indicate autoimmune thyroid disease (Hashimoto's). Important for understanding thyroid dysfunction causes.
Antibodies against thyroglobulin protein. Another marker of autoimmune thyroid disease. Often tested alongside TPO antibodies for comprehensive thyroid autoimmunity assessment.
Liver enzyme that's elevated when liver cells are damaged. The most specific marker for liver injury. Can be elevated by oral compounds, alcohol, and fatty liver disease.
Enzyme found in liver and muscle. Elevated in liver damage, but also after intense exercise. AST:ALT ratio helps differentiate liver damage from muscle damage.
Liver enzyme particularly sensitive to alcohol use and bile duct problems. Often elevated before other liver markers. Important early warning marker for liver stress.
Enzyme found in liver and bone. Elevated in bile duct obstruction, bone disorders, or during bone healing. Helps differentiate types of liver problems.
Breakdown product of red blood cells, processed by the liver. High levels cause jaundice (yellowing). Indicates liver function or red blood cell problems.
Main protein made by the liver. Low levels indicate liver dysfunction, malnutrition, or kidney loss. Also transports hormones and medications in the blood.
Combined albumin and globulin in blood. Reflects nutritional status and liver/kidney function. Important for overall health assessment.
Group of proteins including antibodies. Elevated in infections, inflammation, or immune disorders. Important component of the immune system.
Waste product from muscle metabolism filtered by kidneys. The main marker for kidney function. Can be elevated in muscular individuals or those using creatine supplements.
Calculated estimate of kidney filtration capacity. Values below 60 indicate chronic kidney disease. The best overall measure of kidney function.
Waste product from protein breakdown. Elevated with high protein intake, dehydration, or kidney dysfunction. Used alongside creatinine for complete kidney assessment.
Breakdown product of purines. High levels cause gout (joint crystals) and kidney stones. Also linked to cardiovascular risk and metabolic syndrome.
Alternative kidney function marker not affected by muscle mass. More accurate than creatinine in muscular individuals. Provides more reliable eGFR calculation.
Sum of all cholesterol types. Less important than the ratio of HDL to LDL. Can be elevated on some compounds. Target depends on cardiovascular risk factors.
"Bad" cholesterol that deposits in artery walls. Major cardiovascular risk factor. Often elevated by oral compounds. Lower is generally better.
"Good" cholesterol that removes LDL from arteries. Protective against heart disease. Often suppressed by anabolic compounds. Higher is generally better.
Fat circulating in blood. Elevated by carbohydrates, alcohol, and some compounds. High levels increase cardiovascular and pancreatitis risk. Requires fasting for accuracy.
All "bad" cholesterol combined (LDL + VLDL). Better predictor of cardiovascular risk than LDL alone. Target below 4 mmol/L for most people.
Ratio of total to HDL cholesterol. Better cardiovascular risk predictor than individual values. Target below 4.0. Often worsened by anabolic compound use.
Main protein of HDL cholesterol. Better marker of HDL function than HDL-C alone. Higher levels are protective against cardiovascular disease.
Main protein of LDL and VLDL. Each atherogenic particle has one ApoB, making it the most accurate measure of harmful particle number. Target below 1.0 g/L.
Genetically determined cardiovascular risk factor. High levels significantly increase heart attack and stroke risk. Cannot be lowered by lifestyle changes. Important for risk stratification.
Essential for bone health, immune function, and testosterone production. Deficiency is common in the UK, especially in winter. Target 75-150 nmol/L for optimal health.
Essential for energy, nerve function, and red blood cell production. Active B12 is more accurate than total B12. Deficiency causes fatigue and neurological problems.
Essential for DNA synthesis and red blood cell formation. Works with B12 for homocysteine metabolism. Low levels increase cardiovascular risk and cause anaemia.
Essential mineral for muscle function, energy production, and testosterone synthesis. Deficiency is common and causes muscle cramps, fatigue, and poor recovery.
Essential for testosterone production, immune function, and protein synthesis. Lost through sweat during exercise. Deficiency impairs hormone production and recovery.
Essential for iron absorption, nerve function, and connective tissue. Zinc supplementation can deplete copper. Important to maintain zinc:copper balance.
Essential trace mineral for thyroid function, immune health, and antioxidant defence. Critical cofactor for thyroid hormone conversion. UK soil is selenium-depleted.
Iron storage protein and the best marker of total body iron. Low levels cause fatigue before anaemia develops. Elevated levels can indicate inflammation or iron overload.
Iron circulating in blood. Varies throughout the day and with recent meals. Best interpreted alongside ferritin and transferrin saturation for complete picture.
Measures capacity to transport iron. Elevated when iron stores are low (body makes more carriers). Low in iron overload or chronic disease.
Percentage of iron-binding sites that are occupied. The best single test for iron status. Low in deficiency, high in overload. Target 20-50%.
Oxygen-carrying protein in red blood cells. Low levels indicate anaemia. Often elevated with testosterone use due to increased red blood cell production. Critical for oxygen delivery.
Percentage of blood volume occupied by red cells. Elevated levels increase blood viscosity and clot risk. Critical marker for those using testosterone. Target below 52%.
Number of red blood cells per litre of blood. Increased by testosterone and EPO. Low counts indicate anaemia. Important for oxygen transport capacity.
Average size of red blood cells. High MCV suggests B12/folate deficiency. Low MCV suggests iron deficiency. Helps classify type of anaemia.
Average amount of haemoglobin per red blood cell. Low in iron deficiency, high in B12/folate deficiency. Used alongside MCV to classify anaemia.
Concentration of haemoglobin in red blood cells. Low in iron deficiency. One of the most stable red cell indices.
Variation in red blood cell size. Elevated in iron deficiency and other anaemias. High RDW with normal MCV can indicate early deficiency.
Total immune cells in blood. Elevated in infection and inflammation. Low levels increase infection risk. Normal range is wide but changes matter.
First responders to bacterial infection. The most common white blood cell type. Low neutrophils significantly increase infection risk.
Key cells for viral defence and antibody production. Elevated in viral infections. Include T cells, B cells, and natural killer cells.
Become macrophages in tissues, engulfing pathogens and debris. Elevated in chronic infections and inflammation. Part of innate immune system.
Fight parasites and involved in allergic reactions. Elevated in allergies, asthma, and parasitic infections. Part of differential white count.
Least common white blood cell. Release histamine in allergic reactions. Rarely significantly abnormal on their own.
Cells that form blood clots. Low counts increase bleeding risk. High counts increase clot risk. Important for safe surgical procedures.
Average size of platelets. Larger platelets are more active and may increase clot risk. Provides insight into platelet production in bone marrow.
Immature red blood cells. Elevated count indicates bone marrow is producing more red cells, often in response to blood loss, haemolysis, or erythropoietin stimulation.
Sensitive marker of systemic inflammation and cardiovascular risk. Elevated in chronic inflammation, infection, and injury. Target below 1 mg/L for optimal cardiovascular health.
Non-specific inflammation marker. Elevated in many inflammatory conditions, infections, and autoimmune diseases. Changes more slowly than CRP.
Amino acid linked to cardiovascular disease when elevated. Raised by B12 and folate deficiency. Target below 10 µmol/L. Easily corrected with B vitamins.
Clotting protein and inflammation marker. Elevated levels increase clot and cardiovascular risk. Important when assessing blood viscosity and thrombotic risk.
Pro-inflammatory cytokine. Recruits immune cells to sites of infection or injury. Elevated in chronic inflammation and various disease states.
3-month average blood sugar level. Gold standard for diabetes screening and monitoring. Target below 42 mmol/mol for non-diabetics. Doesn't require fasting.
Blood sugar after 8+ hours fasting. Screening test for diabetes and pre-diabetes. Elevated by insulin resistance. Target 4.0-5.5 mmol/L.
Hormone that controls blood sugar. High fasting levels indicate insulin resistance, often before glucose rises. Important early marker of metabolic dysfunction.
Calculated measure of insulin resistance from glucose and insulin. Better predictor of metabolic risk than either alone. Target below 1.0 for optimal insulin sensitivity.
Heart strain marker released when the heart is under stress. Elevated in heart failure, even before symptoms appear. Important screening marker for cardiac function.
Muscle enzyme released during muscle damage. Elevated after intense training and indicates recovery needs. Very high levels can indicate rhabdomyolysis risk.
Heart-specific form of creatine kinase. Elevated in heart muscle damage. Important for distinguishing cardiac from skeletal muscle injury.
Enzyme released from damaged cells. Elevated in muscle injury, liver disease, and blood disorders. Used to monitor training recovery and tissue damage.
Oxygen-carrying protein in muscle. Released rapidly during muscle damage. Very high levels can damage kidneys. Early marker of muscle injury.
Highly sensitive marker of heart muscle damage. Even small elevations can indicate cardiac stress. Critical for detecting subclinical heart damage in high-risk individuals.
Prostate-produced protein used for cancer screening. Elevated by prostate cancer, BPH, and prostatitis. Can be raised by exogenous testosterone use. Important baseline marker.
Unbound PSA. Free:Total PSA ratio helps distinguish cancer from benign causes. Low ratio (<10%) suggests higher cancer risk. Important when total PSA is borderline.
Percentage of omega-3 in red blood cell membranes. Best marker of long-term omega-3 status. Target >8% for cardioprotection. Most people are deficient.
Anti-inflammatory omega-3 from oily fish. Reduces inflammation, supports cardiovascular health, and may improve mood. Important component of the Omega-3 Index.
Omega-3 essential for brain and eye health. Major structural component of brain tissue. Critical for cognitive function and cardiovascular health.
Omega-6 fatty acid with pro-inflammatory effects when elevated relative to omega-3. Found in meat and eggs. Important for the AA:EPA ratio assessment.
Balance of anti-inflammatory to pro-inflammatory fatty acids. Higher ratio indicates less inflammation. Target >0.5 for reduced inflammatory state.
Overall balance of omega fatty acids. Western diet typically 15:1 or higher. Target <4:1 for optimal health. Lower ratio reduces inflammation.
Essential electrolyte for fluid balance and nerve function. Low levels can occur with excessive water intake or certain medications. Critical for muscle function.
Critical for heart rhythm and muscle function. Abnormal levels can cause dangerous heart arrhythmias. Must be carefully managed. Lost through sweat during exercise.
Works with sodium for fluid balance. Important for digestion (stomach acid). Usually follows sodium levels. Part of comprehensive electrolyte panel.
Buffer that maintains blood pH. Low levels indicate acidosis. Important for understanding acid-base balance, especially with kidney issues.
Essential for bones, muscles, and nerve signalling. Levels are tightly controlled. Abnormal calcium often indicates parathyroid or vitamin D issues.
Essential for bones, energy production, and cell function. Works closely with calcium. Abnormal levels can indicate kidney issues or nutritional problems.
Monocyte chemoattractant protein involved in immune cell recruitment. Elevated in chronic inflammation and atherosclerosis. Advanced inflammatory marker.
Growth factor involved in cell proliferation and wound healing. Important for tissue repair and regeneration. Advanced recovery and healing marker.
Body's ability to neutralise free radicals and oxidative stress. Important for recovery, ageing, and disease prevention. Reflects dietary antioxidant intake.
Critical preparation for the most comprehensive testing:
Most comprehensive testing available • 98 biomarkers • Results in 24-48 hours
Performance-enhancing drugs carry serious health risks including:
⚠️ EDUCATIONAL PURPOSES ONLY ⚠️
This information is provided for harm reduction and education. Aeternox does not recommend, promote, or encourage the use of performance-enhancing drugs. All use carries serious health risks.
While Aeternox does NOT encourage PED use, we recognize that individuals will make their own choices regardless of external advice. Our role is to provide the clinical monitoring that can:
Advanced monitoring for enhanced individuals. Harm reduction, education, and complete biomarker analysis without judgement.
We facilitate access to non-judgemental, laboratory-analysed monitoring for individuals who choose to enhance.
Aeternox Enhanced is a dedicated testing access service built for individuals who use performance-enhancing compounds and require specialised biomarkers, advanced monitoring, and deeper analysis than standard healthcare services provide.
Our mission is harm-reduction, prevention, and education.
Without proper monitoring, these risks can go undetected until serious damage occurs.
Disruption to natural hormone production and regulation
Organ stress from processing compounds
Adverse changes to cholesterol balance
Increased strain on heart and blood vessels
Elevated PSA and prostate concerns
Elevated haematocrit and clot risk
Disruption to metabolic regulation
Impaired stress response and cortisol regulation
Injection site complications and bacterial concerns
Knowledge is power. Here's what these commonly monitored markers actually measure.
Enzymes released when liver cells are stressed or damaged. Elevated levels may indicate the liver is working harder than normal. Many factors can influence these readings.
Measures the percentage of red blood cells in your blood. Higher percentages mean thicker blood, which may affect cardiovascular function. Important for anyone training intensely.
The ratio between these cholesterol types matters for cardiovascular health. LDL transports cholesterol to cells, HDL helps remove excess. Balance is key.
These hormones signal your body to produce testosterone. Low levels may indicate the pituitary gland isn't signalling normally. Essential for understanding hormonal health.
Estimates how well your kidneys filter waste. Important for anyone taking supplements or compounds that are processed through the kidneys. Higher numbers generally indicate better filtration.
Prostate-Specific Antigen levels can be influenced by many factors. Tracking changes over time is more informative than single readings. Always discuss results with a healthcare professional.
For educational purposes only. Results should always be discussed with a qualified healthcare professional who can interpret them in the context of your individual health history.
Enhanced users face a unique set of risks—ranging from liver toxicity and kidney strain to lipid disruption, cardiovascular stress, and suppressed endogenous hormone production. Yet many struggle to access the testing they need due to stigma, judgement, or lack of understanding from traditional healthcare providers.
The NHS doesn't ask about enhancement, and users fear discrimination. GPs are often unable—or unwilling—to order the specific panels required. Private clinics may offer testing, but without the depth of biomarkers needed for true harm reduction.
Aeternox Enhanced bridges this gap. We facilitate access to comprehensive monitoring through our UKAS-accredited laboratory partner, without stigma, judgement, or barriers. Our Enhanced and Ultimate panels are specifically designed around the markers that matter most for detection, prevention, and safety.
Our Mission:
"To provide harm-reduction, prevention, and education for individuals who enhance—offering the monitoring, data, and privacy they deserve, without judgement or stigma."
Private monitoring reduces strain on public healthcare by catching issues early and preventing emergency interventions.
Catching elevated liver enzymes, kidney markers, or lipid disruption before they become emergencies.
Direct access to testing without requiring GP appointments, referrals, or waiting lists.
Proactive monitoring prevents acute liver failure, kidney damage, cardiovascular events, and strokes.
Users access testing without fear of stigma, ensuring they actually seek help when needed.
Clear data empowers users to make informed decisions about cycling, dosing, and when to stop.
Shifting from reactive treatment to proactive prevention reduces long-term healthcare burden.
Informed users make safer choices, reducing overall risk and preventing avoidable health complications.
Regular monitoring catches liver enzyme elevation, kidney dysfunction, and haematocrit spikes before they become acute medical emergencies requiring A&E intervention.
Early detection prevents chronic conditions like cardiovascular disease, liver cirrhosis, and kidney failure that require decades of NHS treatment and management.
When users have clear data, they can make evidence-based decisions about continuing, adjusting, or stopping use—reducing harm and preventing irreversible damage.
Aeternox does NOT promote or encourage the use of performance-enhancing drugs.
Our role is harm reduction, education, and the safe monitoring of individuals who choose to enhance regardless of external advice.
No promotion.
No glamorisation.
Just responsible biomarker monitoring.
56% of UK men have raised cholesterol and elevated haematocrit levels can significantly increase cardiovascular risk. Regular monitoring helps you catch these issues before they become serious.
Two comprehensive options designed specifically for enhanced individual monitoring.
Comprehensive monitoring for enhanced individuals.
The most comprehensive testing available.
Different compounds carry different risks. Here's what biomarkers matter most for each category.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Category: Anabolic androgenic steroids in various ester forms
Biomarkers That Require Monitoring:
Always consult a licensed healthcare professional before considering any hormone therapy.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Category: Oral anabolic steroids with modified chemical structure for oral bioavailability
Critical Biomarkers (High Hepatotoxicity Risk):
WARNING: This category carries extreme liver toxicity risk. Medical supervision is critical.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Category: Veterinary-origin anabolic steroid with no approved human use
Critical Monitoring Requirements:
This compound has no approved medical use in humans. Consult healthcare professionals immediately if experiencing adverse effects.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Educational information on monitoring natural hormone recovery
Essential Monitoring Biomarkers:
Recovery protocols require medical supervision. Always work with a licensed healthcare provider.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Prescription medication used in fertility and hormone therapy contexts
Monitoring Requirements:
HCG is a prescription medication. Use only under medical supervision.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Research chemicals with NO approved medical use and unknown long-term safety profile
Critical Monitoring (Despite Marketing Claims):
WARNING: SARMs are NOT FDA-approved and are sold as "research chemicals only." Quality and purity cannot be verified.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Understanding why baseline values are essential for harm reduction monitoring
Educational Principles:
Always consult a licensed healthcare professional before any hormone-related decisions.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Understanding blood thickness and associated cardiovascular risks
Educational Information:
Consult a healthcare provider for guidance on safe haematocrit management.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Understanding oestrogen management medications (prescription only)
Educational Overview:
These are prescription medications. Never use without medical supervision.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Understanding why ongoing biomarker assessment is critical for harm reduction
Key Monitoring Principles:
Frequency and timing of testing should be determined by a healthcare professional.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Understanding the natural testosterone production recovery process
Educational Information:
Recovery protocols should only be undertaken with medical supervision.
⚠️ EDUCATIONAL PURPOSES ONLY - NOT MEDICAL ADVICE ⚠️
Biomarker abnormalities indicating serious medical risk requiring immediate professional intervention:
ANY concerning biomarker abnormalities require immediate medical consultation. Never ignore warning signs.
Common questions about biomarker monitoring, testing, and harm reduction principles.
⚠️ This FAQ is for educational purposes only. All information should be discussed with a licensed healthcare professional before making any health-related decisions. ⚠️
Get the monitoring, data, and privacy you deserve. No judgement. No stigma. Just laboratory-grade testing.
See exactly what biomarkers are included in each panel to find the right fit for your health goals.
Consider your health goals, current situation, and what information you're looking for.
Best for establishing a hormonal baseline if you've never tested before or want a quick check on key markers.
Ideal if: First-time tester, quick check-in, budget-conscious
Adds thyroid, vitamins, and metabolic markers for a fuller picture of factors affecting energy and wellbeing.
Ideal if: Fatigue, weight changes, mood fluctuations
Comprehensive testing including liver, kidney, and prostate markers. Essential for anyone using supplements or compounds.
Ideal if: Performance focus, supplement user, thorough check
Our most comprehensive panel with 98 biomarkers including omega fatty acids, sports recovery markers, and full organ function.
Ideal if: Athletes, optimisers, comprehensive baseline
If actively monitoring or using supplements/compounds
For general health maintenance and tracking trends
Minimum recommendation for all men over 30
How to interpret your results once they arrive.
Results within the reference range are typically considered normal. However, where you fall within that range matters—low-normal versus high-normal can have different implications.
Reference ranges are population averages. What's "normal" may not be optimal for you. Many men feel their best at the higher end of the testosterone range, for example.
Single snapshots are useful, but trends over time are more valuable. A dropping value—even if still in range—might be worth investigating with regular testing.
Always discuss results with a healthcare professional. Blood tests provide data, not diagnoses. A qualified professional can interpret results in the context of your full health picture.
We treat your health information with the care and respect it deserves. Here's exactly how we handle, protect, and safeguard your data.
Follow exactly what happens to your information from start to finish
Encrypted checkout, no health data stored with payment
Unique barcode links sample to your account securely
UKAS-accredited lab processes with strict protocols
GMC-registered doctor validates your results
Results encrypted and delivered to your private dashboard
Access, export, or delete your data anytime
Physical samples are destroyed within 30 days of analysis. Only your digital results are retained for your health history.
Under UK GDPR, you have powerful rights over your personal data
Get a complete copy of all personal data we hold about you, including test results and account information. Free of charge, delivered within 30 days.
Found something wrong? Request corrections to any inaccurate personal information we hold. Test results are factual, but personal details can be updated.
Exercise your "right to be forgotten" and request deletion of your data. Some records may be retained where we have legal obligations.
Receive your data in machine-readable formats (JSON, CSV) to transfer to another service or keep for your own records.
Temporarily restrict how we use your data while resolving any concerns or disputes. Your data is stored but not actively processed.
Change your mind at any time. Withdraw your consent and we'll stop processing your data for future services.
Making a data request is simple. Contact our Data Protection Officer and we'll respond within 30 days.
Aeternox Ltd
167-169 Great Portland Street
London, W1W 5PF
Mark envelope "Data Request"
Within 30 Days
Usually much faster
Free of charge. All data requests are handled at no cost to you, as required by UK GDPR.
Complete clarity about the information we gather and why
Blood test results and biomarker measurements, health questionnaire responses, medical history you share with us, lifestyle information relevant to your testing, and biological samples (securely destroyed within 30 days of analysis).
Your name, date of birth, biological sex (for accurate reference ranges), contact details including email, phone, and address, encrypted account credentials, and transaction records (we never store full card details).
Device and browser information for security, anonymised usage patterns to improve our service, and communication records from support interactions.
Enterprise-grade security for your most sensitive information
Military-grade encryption
Secure data in transit
Compliant infrastructure
Role-based permissions
All access logged
All your health data stays in the UK. Our servers and partners are all UK-based.
Results stored using unique identifiers, not your name. Extra layer of protection.
Only UKAS-accredited UK laboratories process your samples. They receive the information necessary for accurate analysis, including your date of birth and biological sex for reference ranges. All lab partners are bound by strict confidentiality agreements and UK data protection law.
PCI-DSS compliant processors handle transactions securely. We never store your full card details—only transaction references.
Advertisers, insurance companies, employers, or any third party who could identify you. Your identifiable health data is never sold.
Based on NHS medical record guidelines and HMRC requirements. Data is securely deleted after these periods.
Get in touch about your data rights or any privacy concerns
For rights requests or data queries
dpo@aeternox.co.ukResponse within 5 working days
Understanding why private health monitoring makes a real difference
of UK men wait more than a week with symptoms before seeing a doctor. Private testing removes barriers to monitoring your health.
of men have never discussed their mental health with anyone. Biomarkers like cortisol can reveal stress levels objectively.
Testosterone peaks in the morning, which is why we recommend early testing for the most accurate baseline results.
UK men die before reaching 65. Early detection through regular blood testing can identify risks before they become serious.
Your blood contains over 4,000 different biomarkers. Our panels test the ones most relevant to men's health—from testosterone and thyroid function to liver enzymes and inflammation markers. Each tells a story about what's happening inside your body.
Under UK GDPR, we must have a lawful basis to process your data
For health data (special category data), we rely on your explicit consent, which you provide when ordering a test. You can withdraw this consent at any time.
We process personal data necessary to deliver the service you ordered—dispatching kits, coordinating with laboratories, and providing results.
Some data retention is required by law—including tax records (7 years) and compliance with regulatory requirements.
You have the right to complain to the UK's data protection regulator
If you're unhappy with how we've handled your data, you have the right to lodge a complaint with the ICO, the UK's independent authority for data protection.
We always recommend contacting our DPO first at dpo@aeternox.co.uk so we can try to resolve your concern directly.
Last updated December 2025
Aeternox Ltd • Registered in England and Wales
UK GDPR • Data Protection Act 2018 • Adults 18+ only
Your privacy and data protection rights explained
Last Updated: January 2026 | ICO Registration: [ICO NUMBER]
Aeternox Ltd ("we", "us", "our") is committed to protecting your privacy and personal information. This Privacy Policy explains how we collect, use, share, and protect your personal data when you use our blood testing intermediary service at aeternox.com.
We act as a data controller under the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018. We are registered with the Information Commissioner's Office (ICO) under registration number [ICO NUMBER].
Aeternox Ltd
167-169 Great Portland Street
London, England, W1W 5PF
Company Number: 16679964
Email: privacy@aeternox.com
Important: We process your health data only with your explicit consent under Article 9(2)(a) UK GDPR.
Service Delivery
Process blood test orders, coordinate with our UKAS-accredited laboratory partner, and deliver your results.
Communication
Send order confirmations, updates, and respond to your queries.
Legal Compliance
Comply with health & safety, consumer protection, and tax laws.
We share your data only with essential service providers:
We do NOT sell your data. We do NOT share health data for marketing.
Under UK GDPR, you have these rights:
Right to Access
Request a copy of your personal data
Right to Rectification
Correct inaccurate or incomplete data
Right to Erasure
Request deletion (subject to legal obligations)
Right to Data Portability
Receive your data in structured format
To exercise any rights, email privacy@aeternox.com. We respond within one month.
The terms governing your use of our service
Last Updated: January 2026
By accessing or using Aeternox Ltd's blood testing intermediary service, you agree to be bound by these Terms and Conditions, our Privacy Policy, and our Medical Disclaimer.
Important: We are NOT a medical service. We do NOT provide medical advice, diagnosis, or treatment. We are NOT registered with the Care Quality Commission (CQC).
Aeternox Ltd is an intermediary connecting customers with a UKAS-accredited blood testing facility. We facilitate access to blood testing and provide general health information.
What We Offer:
7 biomarkers | 3-5 working days
34 biomarkers | 3-5 working days
52 biomarkers | 3-5 working days | Venous draw
68 biomarkers | 3-5 working days | Venous draw
98 biomarkers | 5-7 working days | Venous draw
All prices include VAT. Prices subject to change but won't affect existing orders.
30-Day Cancellation Period
You may cancel your order for a full refund within 30 days of purchase if:
Note: £10 kit cost deducted if kit was dispatched. No refund once sample is processed.
Refunds processed within 10 working days. Email support@aeternox.com to cancel.
We guarantee to deliver your test results within 14 working days of our laboratory partner receiving a testable sample. If we fail to meet this (due to our error), you receive a full refund and contract cancellation.
By using our service, you confirm:
To the maximum extent permitted by law, Aeternox Ltd is NOT liable for:
Liability Cap: Our total liability is limited to the amount you paid for your specific test order.
All content on this site (text, graphics, logos, biomarker information) is owned by Aeternox Ltd or licensors and protected by UK copyright and trademark laws. Your test results belong to you.
Aeternox Ltd, 167-169 Great Portland Street, London, W1W 5PF
Company Number: 16679964
Understanding what our service is and what it is not
Aeternox Ltd is a blood testing intermediary service. We connect customers with UKAS-accredited laboratory services and provide general educational information about biomarkers.
We facilitate access to laboratory testing but we do NOT interpret results in a clinical context, provide medical opinions, or offer healthcare services.
✓ What We Provide (Screening)
✗ What We Do NOT Provide (Diagnostic)
Using Aeternox does NOT create a doctor-patient relationship. Our service does not replace, substitute, or provide:
You MUST consult your GP or qualified healthcare professional if:
🚨 CALL 999 IMMEDIATELY 🚨
Do NOT use this service for urgent health problems
If you experience chest pain, difficulty breathing, stroke symptoms, severe bleeding, or any other medical emergency, call 999 or go to A&E immediately.
We are NOT LIABLE for any consequences arising from:
By using Aeternox, you acknowledge that you have read, understood, and agree to this Medical Disclaimer. You understand that our service is NOT a medical service and that you will consult appropriate healthcare professionals regarding your health.
Fast, secure delivery across the UK
1-2 working days for test kit delivery via Royal Mail
Standard delivery to all mainland addresses. Most urban areas receive next-day delivery when ordered before 2pm.
Standard delivery available. May take 2-3 working days due to additional transit time.
Your privacy matters. All test kits are shipped in plain, unmarked packaging with no external indication of contents.
You'll receive tracking information via email once your kit is dispatched:
Every kit includes a prepaid Royal Mail 1st Class tracked return envelope. Simply seal your sample in the biohazard bag provided, place in the return envelope, and post at any Royal Mail postbox or Post Office.
If you haven't received your kit within 3 working days:
Questions about shipping or delivery?
Contact SupportYour rights under UK Consumer Law
Cancel your order within 30 days for a full refund under the Consumer Contracts Regulations 2013
If you haven't used your test kit, you can cancel your order within 30 days of receipt for a full refund. The kit must be returned in its original, unopened packaging.
Important: You are responsible for the cost of returning the unused kit. We recommend using tracked delivery for proof of return.
Once you've used the test kit (collected and submitted your sample), we cannot offer a refund as the service has been provided. This is because laboratory analysis begins immediately upon sample receipt and cannot be reversed.
Your 30-day cancellation period begins from the day you receive your test kit, not the date of purchase. You must notify us of your cancellation within this period, even if you haven't yet returned the kit.
To cancel your order, email us at support@aeternox.com with:
We'll respond within 1 working day with return instructions and your refund authorization.
Step 1: You notify us of cancellation (Day 0)
Step 2: You return the unused kit (Within 14 days)
Step 3: We receive and inspect the kit (1-2 days)
Step 4: Refund processed (Within 14 days of receiving return)
Refunds are issued to the original payment method used for purchase. Depending on your bank, it may take 3-5 working days for the refund to appear in your account after we process it.
Under UK law, you have the right to cancel your order within 14 days of receipt without giving a reason. We extend this to 30 days for your peace of mind.
These rights apply to distance sales (online purchases) and protect your right to examine products before committing to purchase.
You are also protected under the Consumer Rights Act 2015, which requires that goods must be:
If your kit arrives damaged, contact us immediately at support@aeternox.com with photos of the damage. We'll arrange a free replacement kit to be sent within 1 working day. You do not need to return the damaged kit unless we request it.
If any component of your kit is faulty (lancet doesn't work, tube leaks, etc.), we'll send a replacement component or complete kit free of charge. We may ask you to return the faulty item for quality control purposes.
If your sample is rejected by the laboratory due to insufficient volume, clotting, or contamination, we'll send you a replacement kit free of charge. Laboratory rejection is rare (less than 2% of samples) and usually occurs due to collection errors. Our replacement kit includes additional guidance to help you succeed.
We cannot issue refunds in the following circumstances:
If you're not satisfied with our response to a refund request, you can:
Need help with a return or refund?
Contact SupportHow to read and interpret your blood test results
This guide helps you understand your results, but it is NOT a substitute for professional medical advice. ALWAYS discuss your results with your GP or healthcare provider before making any health decisions. If you have concerning results, book a GP appointment immediately.
Reference ranges (also called "normal ranges") represent the typical values for 95% of healthy adults. They're established from thousands of test results and vary by age, sex, and sometimes ethnicity.
Important: Being outside the reference range doesn't automatically mean something is wrong, and being inside doesn't guarantee optimal health. Your doctor considers your complete medical picture.
Each biomarker in your report shows:
Your result falls within the reference range. This is typical for most healthy adults. Continue your current health practices and discuss with your GP at your next routine appointment if you have questions.
Your result is just outside the reference range or at the extreme edges. This may warrant monitoring or lifestyle changes. Book a GP appointment to discuss within 2-4 weeks. Not urgent, but shouldn't be ignored.
Your result is notably outside the reference range. Contact your GP within 1-3 days to discuss. If you have symptoms (chest pain, shortness of breath, severe fatigue), seek medical attention immediately or call 111/999.
What it is: Primary male sex hormone, crucial for muscle mass, bone density, libido, mood, and energy.
High results may indicate: Overtraining, supplement use, tumors (rare)
Low results may indicate: Hypogonadism, age-related decline, obesity, stress, poor sleep, chronic illness
What it is: Hormone that regulates thyroid function, affecting metabolism, energy, and body temperature.
High TSH may indicate: Hypothyroidism (underactive thyroid) - fatigue, weight gain, cold sensitivity
Low TSH may indicate: Hyperthyroidism (overactive thyroid) - anxiety, weight loss, rapid heart rate
What it is: Fat-soluble vitamin crucial for bone health, immune function, and mood regulation.
Low results (very common in UK): Limited sun exposure, dark skin, poor diet. Symptoms include fatigue, bone pain, frequent illness, depression. Usually corrected with supplements.
Look at the big picture, not individual markers. Patterns matter more than single results. Check if multiple related markers are affected (e.g., testosterone + LH + FSH together).
Take your PDF report to your GP. They can:
Blood test results can be affected by recent illness, stress, poor sleep, alcohol, medication, and timing of collection. If results are unexpected, consider retesting in 4-6 weeks after optimizing these factors.
If you're making lifestyle changes or taking supplements, retest in 3-6 months to monitor improvement. Keep all previous reports for comparison. Trends over time are more informative than single snapshots.
Call 999 or go to A&E immediately if you have:
Need help understanding your results?
Contact SupportStep-by-step instructions for successful sample collection
7am-10am after an 8-12 hour fast
DO:
DON'T:
Run hands under warm water for 30 seconds or gently massage fingers to increase blood flow. This makes sample collection much easier. Dry hands completely.
Use middle or ring finger on non-dominant hand. Prick the side of your fingertip (not the center) - it's less painful and bleeds better. Avoid thumb and index finger.
Results in poor blood flow. Always warm hands thoroughly before starting.
More painful and harder to collect. Always use the side of the fingertip.
Can affect results. Use gentle massage from palm toward fingertip instead.
Sample must reach lab within 3 days. Post same day, Monday-Thursday only.
Critical: Post your sample the same day you collect it. Blood samples are time-sensitive and must reach the laboratory within 3 days.
Your prepaid envelope includes Royal Mail 1st Class tracking. Keep the tracking number from your receipt if posting at Post Office. You'll receive an email when the laboratory receives your sample (usually next working day).
Not enough blood? Use the second lancet on a different finger. Run hand under warm water first, and let gravity help by holding hand below waist level.
Blood flow stopped? Don't squeeze hard. Instead, gently massage from palm toward fingertip, or use the second lancet on another finger.
Couldn't collect enough sample? Contact us at support@aeternox.com and we'll send a replacement kit free of charge with extra lancets.
Questions about the testing process?
Contact SupportUKAS-accredited partner delivering world-class diagnostics
Global leader in clinical diagnostics with over 40 years of experience
Our laboratory partner is a world-renowned diagnostics company based in the UK, trusted by the NHS, private clinics, and healthcare providers globally. With over 40 years of experience, they analyze millions of samples annually.
The UK Accreditation Service (UKAS) is the sole national accreditation body recognized by the UK government. ISO 15189 is the international standard for medical laboratories, ensuring competence and quality management.
International standard for medical device quality management systems, demonstrating our partner's commitment to consistently providing safe and effective diagnostic products.
Registered with the UK Medicines and Healthcare products Regulatory Agency, meeting stringent regulatory requirements for diagnostic testing in the UK.
Every sample is tracked from receipt to results delivery:
Before analyzing patient samples each day, our laboratory partner runs internal quality control samples with known values. If controls don't pass, no patient samples are analyzed until the issue is resolved. This ensures accuracy and reliability of every result.
Our laboratory partner participates in regular external quality assessment schemes where independent organizations send blind samples for analysis. Results are compared against other laboratories worldwide to ensure accuracy and consistency.
Our laboratory partner uses state-of-the-art diagnostic analyzers - the same technology used by the NHS and hospitals worldwide:
Once your sample reaches the laboratory, analysis takes 3-7 working days depending on the panel. Most tests are completed within 5 working days. Complex panels requiring multiple analysis methods may take the full 7 days.
We chose our laboratory partner because they offer the same laboratory standards as the NHS while maintaining faster turnaround times and broader test menus. Their UKAS accreditation ensures your results meet the highest clinical standards.
When you share your Aeternox results with your GP, they can be confident in the accuracy and reliability because our UKAS-accredited laboratory partner is recognized and trusted by healthcare professionals worldwide.
Questions about our laboratory standards?
Contact SupportManage your account and access your results
We're building a comprehensive account dashboard for you
View all your test results in one place with interactive charts showing trends over time. Download PDFs or share directly with your GP.
Access your complete order history, invoices, and tracking information. Reorder your preferred panel with one click.
Manage email preferences, notification settings, and delivery addresses. Control what communications you receive and when.
Get notified when your kit ships, when your sample reaches the lab, and when your results are ready. Never miss an update.
While we build your account portal, you'll receive your results via email in PDF format:
If you haven't received your results or can't open the PDF, contact us at support@aeternox.com with your order number. We'll resend immediately.
Questions about your account?
Contact SupportTrack your kit, sample, and results status
You receive instant confirmation email with order number
⏱️ Instant
Email with Royal Mail tracking number
⏱️ Within 1 working day
Track via Royal Mail website using your tracking number
⏱️ 1-2 working days after dispatch
Follow instructions, post same day (Monday-Thursday)
⏱️ At your convenience
Email confirmation when laboratory receives your sample
⏱️ 1 working day after posting
Laboratory analyzes your sample
⏱️ 3-7 working days
Email with password-protected PDF report
⏱️ Total: 5-10 working days
You'll receive automatic emails at key stages: order confirmation, dispatch, lab receipt, and results ready. Check your spam folder if you haven't received expected emails.
Track your kit delivery using your tracking number at: royalmail.com/track
Your return envelope also has tracking, though you won't receive the tracking number unless you post at a Post Office and keep the receipt.
Email us at support@aeternox.com with your order number for a status update. We can check every stage from dispatch to lab receipt to results preparation.
Need help tracking your order?
Contact SupportEverything you need to know about our blood testing service
Simple, private, and comprehensive blood testing in 4 easy steps
Choose from 4 testing tiers based on your health goals. Not sure which? Take our 2-minute quiz or compare all panels side-by-side.
Complete your order online with secure payment. Your kit arrives within 1-2 working days by Royal Mail. Everything you need is included: collection materials, instructions, and pre-paid return envelope.
Core & Plus
Finger prick kit
Enhanced & Ultimate
Clinic instructions
Collect your sample first thing in the morning (7am-10am) for most accurate hormone results. Post your sample the same day using the pre-paid envelope included.
Best Practices:
Your results are processed by our UKAS-accredited laboratory partner. Receive results via secure online portal within 3-7 working days, depending on panel selected.
Remember: If any results are outside reference ranges, you MUST discuss with your GP. We do NOT provide medical interpretation or advice.
Days to Delivery
Day to Lab
Days Processing
Days Total
We guarantee results within 14 working days or full refund
We are a blood testing intermediary. Always consult your GP for medical advice. Read full disclaimer →
Making comprehensive blood testing accessible, private, and understandable
To provide men with direct access to laboratory-grade blood testing that delivers meaningful insights into their hormonal and metabolic health, empowering informed conversations with healthcare professionals.
NHS blood tests can take weeks to arrange and process. We provide results in 3-7 working days, allowing faster health insights without burdening the NHS.
Some men prefer private testing for sensitive health markers. We provide complete privacy while maintaining the highest laboratory standards through UKAS-accredited partners.
NHS tests often cover basic markers only. Our panels test 7-98 biomarkers including hormones, vitamins, metabolic health, and advanced markers not routinely available.
We partner exclusively with a UKAS-accredited laboratory facility meeting the highest UK standards for accuracy and reliability. Your results are laboratory-grade, not home-test estimates.
No hidden fees, no subscriptions unless you want them. Pay once for your test: £99, £165, £239, £339, or £459 depending on panel. All prices include VAT, kit, lab analysis, and results.
We're honest about what we are: an intermediary providing access to testing, NOT a medical service. We don't pretend to replace your GP. We provide screening data to support informed conversations with healthcare professionals.
Your health data is protected under UK GDPR. We're ICO registered, use encrypted storage, and NEVER sell your data. You have full rights to access, correct, or delete your information.
We provide general information about biomarkers so you understand what's being tested. Knowledge empowers better health conversations with your GP, not self-diagnosis.
Aeternox Ltd is a UK-registered company (Company Number: 16679964) based in London. We are registered with the Information Commissioner's Office (ICO) for data protection compliance.
Registered Address:
167-169 Great Portland Street
London, England, W1W 5PF
United Kingdom
UKAS-accredited laboratory standards in every test
Your health data protected under UK GDPR
Honest about what we are and aren't
Making comprehensive testing available to all
We're here to help with your questions
We aim to respond to all enquiries within 24 hours during business days (Monday-Friday, 9am-5pm GMT).
Registered Address:
167-169 Great Portland Street
London, England
W1W 5PF
United Kingdom
We are NOT a medical service and do NOT provide medical advice. For medical emergencies, call 999 immediately. For urgent health concerns, contact your GP or visit A&E.
Laboratory-grade accuracy you can rely on
All blood analysis is performed by our UKAS-accredited laboratory partner, a facility meeting the highest UK standards (ISO 15189) for medical laboratory quality and competence.
Medical Laboratory Standard
Accredited Testing
Based & Regulated
Professional laboratory equipment and methods used in NHS hospitals and private clinics. Not home-test estimations or approximations.
Equipment calibrated daily, with internal and external quality control checks to ensure result accuracy and reliability.
Analysis performed by HCPC-registered biomedical scientists with specialist training in clinical biochemistry.
Chain of custody maintained from collection to disposal. Samples tracked, temperature-controlled, and handled according to UK clinical standards.
Full compliance with UK data protection laws. ICO registered for handling health data.
All health data encrypted in transit (TLS 1.3) and at rest (AES-256). Industry-standard security.
We never sell, rent, or share your health data with third parties for marketing purposes.
Secure Payment Provider
FCA Regulated Payment Processor
PCI DSS Level 1
Highest Payment Security Standard
3D Secure
Additional Fraud Protection
We do not store card details. All payment data handled by our FCA-regulated payment provider.
We believe you deserve to know exactly what you're getting. We're transparent about our limitations, our laboratory partners, our pricing, and what we can and cannot provide.
Understanding when private blood testing makes sense
Important: We fully support the NHS and encourage using NHS services when available. Private testing is a complement, not a replacement, for those who need faster access or more comprehensive panels.
Private testing reduces NHS burden for non-urgent screening tests, allowing NHS resources to focus on patients with clinical needs. By choosing private testing for wellness monitoring, you help free up NHS capacity.
Our laboratory partner meets the same UKAS ISO 15189 standards as NHS laboratories. The quality and accuracy of testing is identical—only the access method differs.
Medical Lab Standard
Accredited Testing
Based & Regulated
Regardless of where you get tested, always discuss results with your GP, especially if anything is outside reference ranges. We provide screening data, NOT medical advice.
Understanding what we test and why it matters
Educational Information Only: This glossary provides general information about biomarkers. It is NOT medical advice. Always discuss your results with your GP for proper interpretation.
The primary male sex hormone responsible for muscle mass, bone density, mood, libido, and energy levels. Levels naturally decline with age.
Reference Range
8.64 - 29 nmol/L
Tested In
All Panels
The biologically active form of testosterone not bound to proteins. Represents the testosterone available for immediate use by the body's tissues.
Reference Range
0.2 - 0.62 nmol/L
Tested In
Core, Plus, Enhanced, Ultimate
Protein that binds to testosterone, making it unavailable for use. Higher SHBG means less free testosterone available to tissues.
Reference Range
18.3 - 54.1 nmol/L
Tested In
Plus, Enhanced, Ultimate
The main estrogen in men. Converted from testosterone by aromatase enzyme. Essential for bone health and libido, but excessive levels can cause issues.
Reference Range
41 - 159 pmol/L
Tested In
Enhanced, Ultimate
Produced by pituitary gland to stimulate thyroid. High TSH suggests underactive thyroid (hypothyroidism). Low TSH suggests overactive thyroid (hyperthyroidism).
Reference Range
0.27 - 4.2 mIU/L
Tested In
Plus, Enhanced, Ultimate
The active thyroid hormone that regulates metabolism, energy production, and body temperature. More potent than T4.
Reference Range
3.1 - 6.8 pmol/L
Tested In
Enhanced, Ultimate
Essential for bone health, immune function, mood regulation, and testosterone production. Deficiency is common in UK due to limited sunlight.
Optimal Range
50 - 200 nmol/L
Tested In
Plus, Enhanced, Ultimate
Crucial for nerve function, red blood cell formation, and DNA synthesis. Deficiency can cause fatigue, weakness, and neurological issues.
Reference Range
197 - 771 ng/L
Tested In
Plus, Enhanced, Ultimate
Average blood glucose levels over the past 2-3 months. Used to screen for diabetes and prediabetes.
Normal Range
20 - 42 mmol/mol
Tested In
Plus, Enhanced, Ultimate
Sum of HDL, LDL, and other cholesterol-containing particles. Important for cardiovascular health assessment.
Desirable Range
< 5.0 mmol/L
Tested In
All Panels
Liver enzyme released when liver cells are damaged. Elevated ALT may indicate liver inflammation or damage.
Reference Range
10 - 50 U/L
Tested In
Enhanced, Ultimate
Waste product from muscle metabolism filtered by kidneys. High levels may indicate reduced kidney function.
Reference Range
59 - 104 µmol/L
Tested In
Enhanced, Ultimate
Choose a panel that includes the biomarkers most relevant to your health goals
Compare All PanelsSee what's included in your comprehensive results report
Every Aeternox report includes your biomarker measurements, reference ranges, status indicators, and general educational information—all in a clean, easy-to-understand format.
Precise numerical values for each biomarker tested
Laboratory-established healthy ranges for comparison
Clear visual markers (Normal, Low, High, Optimal)
Plain English explanations of what each biomarker means
Downloadable PDF to share with your GP
UKAS-accredited laboratory stamp on every report
Your report provides screening data, NOT medical advice. Always discuss results with your GP, especially if any markers are outside reference ranges. Your GP can interpret results in context of your full medical history.
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