Biomarker Library
Explore 75 blood biomarkers. Understand what each marker means, optimal ranges, and evidence-based ways to improve your results.
75 biomarkers
Vitamins & MineralsActive Vitamin B12Measures the biologically active form of vitamin B12 that your cells can actually use, making it a more accurate test than total B12.Read guide →LiverAlbuminThe most abundant protein in your blood, produced by the liver; albumin levels reflect both liver synthetic function and nutritional status.Read guide →LiverAlkaline PhosphataseAn enzyme found in the liver and bones; ALP helps identify bile duct blockages and bone disorders alongside other liver function tests.Read guide →Cancer MarkersAlpha-Fetoprotein (AFP)A protein marker used to monitor liver health, liver cancer risk, and certain germ cell tumours.Read guide →LiverALT (Alanine Aminotransferase)A liver enzyme that rises when liver cells are damaged; ALT is the most specific blood test marker for liver inflammation and injury.Read guide →HormonesAnti-Mullerian Hormone (AMH)A marker of ovarian reserve that helps assess remaining egg supply and fertility potential.Read guide →ThyroidAnti-Thyroglobulin AntibodiesAntibodies against thyroglobulin protein, used alongside Anti-TPO to assess autoimmune thyroid risk.Read guide →ThyroidAnti-TPO AntibodiesAntibodies targeting thyroid peroxidase, the leading marker for autoimmune thyroid conditions.Read guide →LipidsApolipoprotein BA protein found on every potentially harmful cholesterol particle; many experts consider ApoB the single best predictor of cardiovascular risk.Read guide →LiverAST (Aspartate Aminotransferase)A liver enzyme also found in the heart and muscles; the AST to ALT ratio helps distinguish between different causes of liver damage.Read guide →Blood HealthBasophilsThe rarest white blood cell type, involved in allergic responses and inflammatory signalling.Read guide →LiverBilirubinA yellow pigment produced when red blood cells are broken down; bilirubin levels reflect how well your liver processes and excretes waste products.Read guide →Cancer MarkersCA-125A protein marker used primarily in the monitoring of ovarian cancer and assessment of pelvic masses.Read guide →Vitamins & MineralsCalciumMeasures calcium in your blood, essential for strong bones, muscle contraction, nerve signalling, and heart rhythm regulation.Read guide →Cancer MarkersCEA (Carcinoembryonic Antigen)A protein marker primarily used to monitor colorectal cancer treatment and detect recurrence.Read guide →HormonesCortisolThe primary stress hormone that influences energy, metabolism, immunity, and overall resilience.Read guide →Muscle & BoneCreatine KinaseAn enzyme released from damaged muscle tissue, used to assess muscle health and recovery.Read guide →KidneyCreatinineA waste product from muscle metabolism filtered by your kidneys; creatinine levels help assess how well your kidneys are functioning.Read guide →HormonesDHEA-SulphateA key adrenal hormone linked to ageing, energy levels, and overall hormonal balance.Read guide →KidneyeGFRAn estimate of how much blood your kidneys filter per minute, calculated from your creatinine level; the standard measure of kidney function in the UK.Read guide →Blood HealthEosinophilsA white blood cell type involved in allergic responses, parasitic defence, and inflammatory regulation.Read guide →Iron & InflammationESR (Erythrocyte Sedimentation Rate)Measures how quickly your red blood cells settle in a test tube, providing a simple indicator of inflammation in your body.Read guide →DiabetesFasting GlucoseA snapshot of your blood sugar level after an overnight fast, used to screen for diabetes and assess how well your body regulates glucose.Read guide →IronFerritinA protein that stores iron in your cells; ferritin is the best single marker for assessing your body's iron reserves and detecting iron deficiency early.Read guide →Vitamins & MineralsFolateMeasures vitamin B9, essential for DNA synthesis, red blood cell production, and healthy cell division throughout the body.Read guide →HormonesFree Androgen IndexA calculated measure of biologically available testosterone, important for hormonal balance in both sexes.Read guide →ThyroidFree T3 (Free Triiodothyronine)The most active thyroid hormone your body uses; Free T3 drives metabolism at the cellular level and is essential for energy, mood, and body temperature.Read guide →ThyroidFree T4 (Free Thyroxine)The main hormone produced by your thyroid gland; Free T4 measures the active, unbound portion available for your body to use.Read guide →Hormones (Male)Free Testosterone (Male)Measures the unbound, biologically active fraction of testosterone that is freely available for your cells to use.Read guide →HormonesFSH (Follicle-Stimulating Hormone)Measures the pituitary hormone that drives egg development in women and sperm production in men, key for assessing reproductive function.Read guide →LiverGamma GTA sensitive liver enzyme that responds to alcohol, medications, and bile duct problems; often the first liver marker to rise when something is wrong.Read guide →Liver & KidneyGlobulinA group of proteins involved in immune function, inflammation, and nutrient transport.Read guide →Blood CellsHaematocritMeasures the percentage of your blood volume occupied by red blood cells, indicating blood thickness and oxygen-carrying capacity.Read guide →Blood CellsHaemoglobinMeasures the oxygen-carrying protein inside your red blood cells, directly reflecting your blood's ability to deliver oxygen throughout your body.Read guide →DiabetesHbA1cMeasures your average blood sugar over the past 2-3 months by assessing how much glucose has attached to your red blood cells.Read guide →LipidsHDL CholesterolKnown as 'good' cholesterol, HDL helps remove excess cholesterol from your bloodstream and transport it back to the liver.Read guide →Iron & Inflammationhs-CRP (High-Sensitivity C-Reactive Protein)A highly sensitive measure of low-grade inflammation in your body, used to assess cardiovascular risk and overall immune activity.Read guide →DiabetesInsulinMeasures the hormone responsible for blood sugar regulation; elevated fasting insulin is an early warning sign of insulin resistance and metabolic dysfunction.Read guide →IronIronMeasures the amount of iron circulating in your blood; best interpreted alongside ferritin and TIBC for a complete picture of iron status.Read guide →LipidsLDL CholesterolOften called 'bad' cholesterol, LDL carries cholesterol to your arteries where it can accumulate and form dangerous plaques.Read guide →HormonesLH (Luteinising Hormone)Measures the pituitary hormone that triggers ovulation in women and stimulates testosterone production in men.Read guide →LipidsLipoprotein(a)A genetically determined type of LDL particle linked to increased cardiovascular and blood clotting risk; levels are largely fixed by your genes.Read guide →Blood CellsLymphocytesMeasures the immune cells responsible for targeted defence — fighting viruses, producing antibodies, and maintaining long-term immune memory.Read guide →Vitamins & MineralsMagnesiumMeasures this essential mineral involved in over 300 enzymatic reactions, including energy production, muscle function, and sleep quality.Read guide →Blood CellsMCH (Mean Corpuscular Haemoglobin)Measures the average amount of haemoglobin per red blood cell, indicating how much oxygen each individual cell can carry.Read guide →Blood HealthMCHC (Mean Corpuscular Haemoglobin Concentration)Measures the average concentration of haemoglobin within red blood cells, indicating oxygen-carrying efficiency.Read guide →Blood CellsMCV (Mean Corpuscular Volume)Measures the average size of your red blood cells, helping identify the type and cause of anaemia or nutrient deficiency.Read guide →Blood HealthMean Platelet Volume (MPV)Measures the average size of platelets, providing insight into bone marrow function and clotting risk.Read guide →Blood HealthMonocytesA type of white blood cell that forms a key part of the innate immune system and inflammation response.Read guide →Blood CellsNeutrophilsMeasures your body's most abundant immune cells — the first responders that rush to fight bacterial infections and tissue damage.Read guide →Heart HealthNon-HDL CholesterolA comprehensive measure of all atherogenic cholesterol particles linked to cardiovascular risk.Read guide →HormonesOestradiolMeasures the most potent form of oestrogen, essential for bone density, brain health, cardiovascular protection, and reproductive function.Read guide →Vitamins & MineralsPhosphateMeasures phosphate levels, essential for bone strength, energy production (ATP), and maintaining the acid-base balance in your body.Read guide →Blood CellsPlatelet CountCounts the tiny cell fragments responsible for blood clotting, wound healing, and maintaining the integrity of your blood vessels.Read guide →ElectrolytesPotassiumAn essential electrolyte critical for heart rhythm, muscle contraction, and nerve signalling.Read guide →HormonesProgesteroneA key reproductive hormone essential for menstrual health, fertility, and hormonal balance.Read guide →HormonesProlactinA pituitary hormone involved in reproductive health, mood regulation, and immune function.Read guide →Cancer MarkersProstate-Specific Antigen (PSA)A protein produced by the prostate gland used as a screening marker for prostate health.Read guide →Blood CellsRed Blood Cell CountCounts the number of red blood cells in your blood, reflecting your body's capacity to carry oxygen to every tissue and organ.Read guide →Blood HealthRed Cell Distribution Width (RDW)Measures the variation in red blood cell size, helping to identify anaemia types and broader health risks.Read guide →Hormones (Male)SHBG (Sex Hormone-Binding Globulin)Measures the protein that binds and transports sex hormones in your blood, controlling how much testosterone and oestrogen is available to your cells.Read guide →ElectrolytesSodiumA vital electrolyte that regulates fluid balance, nerve function, and blood pressure.Read guide →Heart HealthTC:HDL RatioThe ratio of total cholesterol to HDL cholesterol — a key indicator of cardiovascular risk.Read guide →Hormones (Male)Testosterone (Male)Measures the primary male sex hormone responsible for muscle mass, bone density, libido, energy levels, and overall masculine vitality.Read guide →IronTIBC (Total Iron-Binding Capacity)Measures how much iron your blood can carry by assessing transferrin protein levels; high TIBC suggests your body is seeking more iron.Read guide →LipidsTotal CholesterolA measure of all cholesterol circulating in your blood, including HDL, LDL, and other lipid particles.Read guide →Liver & KidneyTotal ProteinA measure of all proteins in the blood, reflecting liver function, nutrition, and immune health.Read guide →Iron & InflammationTransferrin SaturationMeasures the percentage of your iron-transport protein that is actually carrying iron, revealing how well your body distributes iron.Read guide →LipidsTriglyceridesThe most common type of fat in your blood, triglycerides store excess energy from your diet and are a key marker of metabolic health.Read guide →ThyroidTSH (Thyroid Stimulating Hormone)The master control hormone for your thyroid gland; TSH levels reveal whether your thyroid is producing too much or too little thyroid hormone.Read guide →KidneyUreaA waste product from protein metabolism filtered by the kidneys; urea levels help assess kidney function and hydration status.Read guide →KidneyUric AcidA waste product from purine metabolism; elevated uric acid is linked to gout, kidney stones, cardiovascular disease, and metabolic syndrome.Read guide →Vitamins & MineralsVitamin D (25-OH)Measures your body's vitamin D stores, essential for bone health, immune function, mood regulation, and long-term disease prevention.Read guide →Blood CellsWhite Blood Cell CountMeasures the total number of white blood cells defending your body, providing a snapshot of your immune system's activity.Read guide →Vitamins & MineralsZincMeasures this essential trace mineral that supports immune function, wound healing, testosterone production, and over 200 enzymatic processes.Read guide →