What’s in a 100+ biomarker panel?
Almost every longevity program advertises a number: 80 markers, 100, 150. The number is the least useful part of the offer. What matters is which markers are on the list, how many of them your own physician already runs, and whether anyone sits down and explains the result.
What is a biomarker?
A biomarker is a measurable signal from your body: a hormone, a protein, a nutrient, a type of blood cell, or a product of your metabolism. Each one reports on how some part of you is doing at the moment it was measured. Cholesterol is a biomarker. So is vitamin D, so is your white blood cell count, and so is the blood sugar reading you get at a physical.
Why longevity panels test more
A standard physical is built to catch disease that is already present. A longevity panel is built to look earlier, across more systems at once, on the theory that a trend is easier to change than a diagnosis. That means testing things a physical usually skips: ApoB rather than just cholesterol, fasting insulin rather than just glucose, a full thyroid picture rather than a single screening value.
Programs make the contrast themselves, and it is worth reading as marketing rather than as settled fact. Superpower, for example, contrasts its 100+ panel with the 10 to 15 markers it says are typical of a standard physical. That is Superpower’s framing of the gap, not a medical consensus about how many markers a person needs.
What a panel can cover
Twelve areas, and the marker names you are most likely to see on a menu or a results screen.
Heart and circulation
The group with the strongest evidence behind it, and the one where a standard panel is most often thinner than it should be.
- ApoB Counts the particles that carry cholesterol into an artery wall.
- Lipoprotein(a) Largely inherited and stable for life, so worth measuring once.
- hs-CRP A general inflammation signal, useful alongside the rest rather than alone.
- Full lipid panel LDL, HDL and triglycerides, the part your physician already runs.
Metabolism and blood sugar
Where trouble shows up years before a diagnosis does.
- HbA1c Your average blood sugar over roughly three months.
- Fasting insulin Often moves well before glucose does, which is the argument for it.
- Fasting glucose The standard measure, and the one most physicals include.
- Triglycerides Sensitive to diet and alcohol in the days before the draw.
Hormones and reproductive health
Most useful when there is a symptom to explain, and worth care when there is not.
- Testosterone Total and free, which can tell different stories.
- Estradiol Read alongside cycle timing or menopausal status, never on its own.
- DHEA-S An adrenal hormone that declines steadily with age.
- Cortisol Varies enormously by time of day, so the draw time matters.
Thyroid
Often the explanation for fatigue, weight change or cold intolerance, and cheap to check.
- TSH The screening test, and usually the only one a physical includes.
- Free T4 The stored hormone, measured when TSH is unclear.
- Free T3 The active hormone. Its usefulness is genuinely debated.
Inflammation and immune function
Broad signals rather than a diagnosis, which is both their use and their limit.
- hs-CRP The most commonly used inflammation marker.
- Homocysteine Linked to B-vitamin status as much as to inflammation.
- White blood cell count Part of a standard complete blood count.
Nutrients and minerals
The group most likely to turn up something real that you can actually fix.
- Vitamin D Commonly low, especially in northern winters.
- Vitamin B12 Worth checking on a plant-based diet or long-term metformin.
- Ferritin Catches iron deficiency that a normal haemoglobin can hide.
- Omega-3 index Measures what is in your red blood cells, not what you ate yesterday.
- Magnesium Blood levels reflect body stores poorly, which is worth knowing.
Liver and kidney
The backbone of any blood panel, and almost certainly already in your records.
- ALT and AST Liver enzymes that rise with alcohol, medication or fatty liver.
- GGT More specific to alcohol and bile-duct issues.
- Creatinine and eGFR The standard estimate of kidney filtration.
- Cystatin C A second kidney estimate, less affected by muscle mass.
Blood and oxygen
How well your blood carries oxygen, and whether anything is quietly off.
- Complete blood count Red cells, white cells and platelets in one test.
- Haemoglobin The oxygen-carrying protein itself.
- Iron and TIBC Read with ferritin to separate deficiency from inflammation.
Environmental exposures
Heavy metals and toxins. Useful with a specific exposure history, and oversold without one.
- Lead Worth testing with old housing or an occupational exposure.
- Mercury Tracks heavy fish consumption more than anything else.
- Arsenic Usually dietary, and usually transient.
Biological aging
The newest group and the least settled. Interesting to track, not something to act on alone.
- Epigenetic age A DNA methylation estimate. Different labs give different answers.
- Telomere length Widely measured, weakly predictive for any one person.
Cancer-related markers
Screening tests, not diagnoses. A positive result starts an investigation rather than ending one.
- PSA Prostate screening, with a long-standing debate about who benefits.
- Multi-cancer early detection A blood test looking for tumour DNA across many cancers.
Energy and performance
Measured rather than sampled: these come from a treadmill and a scanner, not a vial.
- VO₂ max The single best-evidenced fitness measure for long-term health.
- DEXA body composition Separates fat, lean mass and bone, which a scale cannot.
- Grip strength A crude test that predicts a surprising amount.
Panels vary, and some programs count genomic testing, biological-age estimates or a microbiome analysis toward the headline number. Ask for the actual list before you book, not the count.
What happens after testing
The question is not only how many biomarkers. It is: who explains the results, and what happens next?
- 1Collection
Blood is drawn at the clinic, at a partner lab such as Quest or Labcorp, or at home by a visiting phlebotomist.
- 2Laboratory
The sample is processed by a laboratory, which is often a separate company from the program you bought.
- 3Results report
Numbers arrive, usually in an app or portal, frequently with colour coding that implies more certainty than a single reading carries.
- 4Interpretation
Someone explains what the numbers mean for you specifically. This is the step that varies most between programs.
- 5Plan, treatment or referral
A program either acts on what it found, hands you a plan to take elsewhere, or refers you on. All three are legitimate and they are not the same purchase.
- 6Retesting
Markers are measured again after a set interval, which is the only way to know whether anything you changed worked.
Many programs never see your blood. Collection happens at home or at a partner lab such as Quest or Labcorp, the assay is run by that laboratory, and the program reviews what comes back. That is a normal arrangement and worth knowing before you assume a clinic visit.
Worth knowing
- A bigger panel is not automatically a better one.Past a point, extra markers mostly produce findings that sit slightly outside a reference range and mean nothing on their own. Which markers, and who reads them, matters more than how many.
- Roughly half of a long panel is a standard physical.Organ function, the complete blood count, glucose and a basic lipid panel are ordinary primary-care tests. Bring your recent results and ask what genuinely needs repeating.
- One reading is a point, not a trend.Several of these markers move with a bad night of sleep, a hard workout the day before, or a recent illness. A single abnormal number is usually a reason to retest.
- Biological-age scores are interesting, not actionable.Epigenetic and telomere estimates are real measurements of something. Whether that something should change what you do this year is not settled, and different labs will give you different numbers from the same blood.
- Food-sensitivity panels are the weakest thing on most menus.IgG food panels are not accepted as a test for food intolerance by the main allergy and immunology bodies. A positive result usually reflects what you have been eating.
- Heavy-metal testing needs a reason.With a specific exposure history it is a sensible test. Ordered speculatively it mostly produces mildly elevated numbers and a supplement recommendation.
Where to get one
Your own physician can order much of this list, and insurance may cover the part of it that is standard care. That is worth asking before you pay out of pocket for a whole panel.