The Longevity Biomarker Panel: 12 Markers Worth Tracking Yearly

Quick answer: Longevity biomarkers are blood and metabolic markers that track biological aging faster and more precisely than chronological age. The most actionable panel combines cardiovascular risk markers (ApoB, Lp(a), hs-CRP), metabolic markers (fasting insulin, HbA1c, HOMA-IR), nutrient and detox markers (omega-3 index, homocysteine, GGT), and body-composition proxies (IGF-1, DHEA-S, albumin). Tracking these annually gives you a concrete, numbers-based picture of how fast your body is aging and which systems need intervention first.

Why standard annual labs miss most of what predicts longevity

A routine physical typically orders a basic metabolic panel, CBC, and a standard lipid panel. That combination catches overt disease but misses the slow-moving upstream problems that take 10 to 20 years to surface as a heart attack or type 2 diabetes. ApoB, for example, is a direct count of atherogenic particles circulating in your blood, and it predicts cardiovascular events far better than LDL-C, yet Quest and Labcorp both require a specific order to run it. Most primary care doctors still skip it. Fasting insulin, which rises quietly for a decade before blood glucose moves, is almost never included in a routine metabolic panel. The gap between what a standard draw measures and what actually predicts a long, healthy life is wide enough to drive a decade of silent disease progression through.

If you want a complete blood panel built around healthspan rather than disease detection, you have to build it yourself or find a service that has already assembled it. This article defines the 12 longevity biomarkers with the strongest evidence base, explains what each one tells you, lists realistic 2026 cash prices, and shows how to capture all of them in a single annual draw.

What counts as a longevity biomarker, and what does not

A true longevity biomarker does three things: it changes ahead of clinical disease, it is modifiable by lifestyle or medication, and it has prospective data linking its levels to all-cause mortality or major adverse cardiovascular events. A lot of trendy markers fail one of those three tests. Telomere length testing, for instance, has poor reproducibility between labs and no clear intervention target. Biological age clocks based on DNA methylation are genuinely interesting but still lack standardized reference ranges for an individual making weekly lifestyle decisions. The 12 markers below pass all three tests based on peer-reviewed evidence as of 2026.

The 12 longevity biomarkers and what they measure

1. ApoB (apolipoprotein B)

ApoB counts every atherogenic lipoprotein particle, one-to-one, regardless of how much cholesterol each particle is carrying. Each LDL, VLDL, and IDL particle carries exactly one ApoB molecule, so ApoB gives you the particle count directly. Population studies consistently show ApoB outperforms LDL-C in predicting first and recurrent cardiovascular events. Optimal for longevity is typically below 80 mg/dL for someone with no other risk factors, and below 60 mg/dL for someone with prior cardiovascular disease or metabolic syndrome. Cash price at Quest or Labcorp: $15 to $45 standalone.

2. Lp(a) (lipoprotein little a)

Lp(a) is a genetically determined atherogenic particle that standard lipid panels never measure. Roughly 20 percent of the US population carries elevated Lp(a) (above 50 mg/dL or 125 nmol/L), and most of them have no idea. It is the single strongest genetic risk factor for early coronary artery disease. You only need to measure it once in your adult life under most guidelines because it barely changes with lifestyle, but knowing your level determines how aggressively you should push every other modifiable risk factor. Cash price: $30 to $60.

3. hs-CRP (high-sensitivity C-reactive protein)

hs-CRP is the most widely validated inflammatory aging marker. Chronic low-grade inflammation (hs-CRP between 1 and 3 mg/L) roughly doubles cardiovascular risk, and values above 3 mg/L are associated with accelerated biological aging across multiple tissues. Unlike standard CRP, hs-CRP is sensitive enough to detect the smoldering inflammation that precedes atherosclerosis by years. Sleep, visceral fat, and ultra-processed food intake are the biggest modifiable drivers. Cash price: $15 to $35.

4. Fasting insulin

Fasting insulin is the canary in the metabolic coalmine. Glucose does not rise significantly until the pancreas has been compensating with elevated insulin for years, sometimes a decade. A fasting insulin above 10 uIU/mL in someone with normal fasting glucose is an early warning that insulin resistance is developing. Optimal for longevity is considered below 5 to 7 uIU/mL by most functional medicine practitioners. This marker is almost never ordered in a standard physical, yet the fasting insulin test is one of the cheapest and most actionable draws you can run. Cash price: $25 to $55.

5. HbA1c (hemoglobin A1c)

HbA1c reflects average blood glucose over the prior 8 to 12 weeks by measuring how much glucose has glycated hemoglobin. Prediabetes starts at 5.7 percent, but longevity-focused clinicians often treat 5.4 to 5.6 percent as a warning zone in someone under 50. Above 6.5 percent is clinical diabetes. HbA1c is one of the few aging markers that insurers routinely cover, especially after age 45. Cash price if paying out of pocket: $20 to $45.

6. HOMA-IR (homeostatic model assessment of insulin resistance)

HOMA-IR is not a separate blood draw. It is calculated from fasting glucose and fasting insulin using a simple formula: (fasting insulin in uIU/mL x fasting glucose in mmol/L) divided by 22.5. A HOMA-IR above 1.9 suggests early insulin resistance; above 2.9 is substantial resistance. It gives you a combined signal that neither glucose nor insulin alone provides. Because it requires both draws, labs sometimes bundle fasting insulin with a standard metabolic panel to calculate it automatically.

7. Omega-3 index

The omega-3 index measures the percentage of EPA and DHA in red blood cell membranes, which reflects long-term tissue incorporation of omega-3 fatty acids rather than what you ate last week. An index below 4 percent is associated with significantly elevated cardiac mortality. The target range for longevity is 8 to 12 percent. Most Americans sit between 4 and 6 percent. This marker is not on any routine panel, and many clinicians have never ordered it, yet omega-3 index longevity data from large cohort studies (including the Framingham Heart Study spin-offs) are as compelling as ApoB data for cardiovascular outcomes. Cash price: $45 to $90, depending on whether it is the basic EPA/DHA ratio or the full fatty acid profile.

8. Homocysteine

Homocysteine is a sulfur-containing amino acid that rises when folate, B6, or B12 metabolism is impaired. Elevated homocysteine (above 10 to 12 umol/L) is independently associated with cardiovascular disease, cognitive decline, and all-cause mortality. It is also eminently fixable. A standard B-complex supplement bringing B12 and folate to adequate levels will normalize homocysteine in most people within 8 to 12 weeks. That combination of strong prognostic data and easy reversibility makes it one of the highest-value longevity biomarkers to track. Cash price: $30 to $65.

9. GGT (gamma-glutamyl transferase)

GGT sits inside the standard liver enzyme panel but is almost always interpreted only in the context of alcohol use or frank liver disease. In longevity medicine, GGT serves a different role: it is a sensitive marker of oxidative stress and early metabolic dysfunction. Even a GGT in the upper-normal range (above 25 to 30 U/L in women, above 35 to 40 U/L in men) is associated with elevated risk of cardiovascular disease and type 2 diabetes in studies with 20-plus years of follow-up. Most people with elevated GGT have no liver symptoms and no heavy drinking history. Diet quality, visceral fat, and environmental toxin exposure drive it up. An alkaline phosphatase test is often run alongside GGT to differentiate liver from bone origins when values are ambiguous. Cash price: $15 to $30 as part of a comprehensive metabolic panel.

10. IGF-1 (insulin-like growth factor 1)

IGF-1 reflects growth hormone activity and protein anabolic status. The relationship with longevity is a U-curve: very low IGF-1 is associated with sarcopenia and frailty in older adults, while chronically elevated IGF-1 is associated with accelerated cell division and some cancer risks. The optimal zone for most middle-aged adults is roughly 100 to 200 ng/mL, though reference ranges vary by lab and age bracket. Tracking IGF-1 annually is particularly useful for anyone using exogenous peptides or growth hormone secretagogues, or for anyone concerned about muscle loss after 50. Cash price: $35 to $75.

11. DHEA-S (dehydroepiandrosterone sulfate)

DHEA-S is the most abundant circulating steroid hormone and declines predictably with age, peaking in the mid-20s and dropping to about 20 percent of peak levels by age 70. It serves as a precursor to both androgens and estrogens and modulates immune function, cardiovascular health, and cognitive performance. Low DHEA-S is associated with frailty and increased mortality in older adults. Tracking it annually tells you where you fall on the aging curve for this axis and whether supplementation or lifestyle changes are moving the needle. Cash price: $25 to $55. For more on this specific marker, the DHEA-S test guide covers interpretation in detail.

12. Albumin

Albumin is the most abundant protein in your blood and is produced exclusively by the liver. In the context of longevity rather than acute illness, albumin tracks nutritional status, liver synthetic function, and chronic inflammation (because albumin is a negative acute-phase reactant, it falls as inflammation rises). Values below 4.0 g/dL in a non-hospitalized adult are a quiet red flag for protein insufficiency or low-grade chronic inflammation. The albumin test is included in most comprehensive metabolic panels, so there is rarely a reason not to have it. Cash price: included in CMP, roughly $10 to $25 standalone.

What these 12 markers cost as a self-pay panel in 2026

Ordering each marker individually from Quest or Labcorp, using direct-to-consumer pricing, will cost you more than ordering them as a bundled panel. Here is a realistic cost range breakdown for 2026 cash-pay pricing:

Marker	Cash price range (2026)	Included in standard annual labs?
ApoB	$15 to $45	No
Lp(a)	$30 to $60	No
hs-CRP	$15 to $35	No (standard CRP sometimes)
Fasting insulin	$25 to $55	No
HbA1c	$20 to $45	Sometimes after age 45
Homocysteine	$30 to $65	No
Omega-3 index	$45 to $90	No
GGT	$15 to $30 (in CMP)	Yes, in CMP
IGF-1	$35 to $75	No
DHEA-S	$25 to $55	No
Albumin	$10 to $25 (in CMP)	Yes, in CMP
HOMA-IR (calculated)	Calculated from glucose + insulin	No

Adding the midpoints across all 12 markers ordered individually, you are looking at roughly $280 to $580 per year out of pocket. That does not include the clinician consultation fee to order them or interpret the results, which at an urgent care or functional medicine practice can add another $150 to $300. HSA and FSA dollars can usually cover lab draws and physician-ordered panels, though the omega-3 index from a direct-to-consumer service may or may not qualify depending on your plan administrator.

How to get all 12 longevity biomarkers in one blood draw

The practical challenge is that no single standard order set at Quest or Labcorp captures all 12. You would need to order them individually, which means either convincing a primary care physician to write a panel most insurers will deny as non-diagnostic, or using direct-to-consumer lab ordering in the states where it is permitted (most, but not all). A few paths work in 2026:

• Comprehensive membership panels (Superpower, Function Health, Marek Health): These services pre-bundle 80 to 120+ markers, typically include all 12 listed above, provide physician review, and track trends year over year. Per-marker cost is substantially lower than individual ordering. Most operate nationwide except New York and New Jersey, where direct-to-consumer lab ordering is restricted by state law.
• Direct-to-consumer ordering (Ulta Lab Tests, LabFinder, Walk-In Lab): You self-order specific panels, pay cash, walk into a Quest or Labcorp draw site. You interpret results yourself or bring them to a clinician. Lower upfront cost per visit, but no trend tracking, no physician review included, and the bill adds up if you order all 12 individually.
• Functional medicine practice: A functional medicine physician will typically order a comprehensive panel that includes most longevity markers as a baseline. The draw itself goes through Quest or Labcorp, but the physician handles ordering and interpretation. Expect a $200 to $500 consultation fee on top of lab costs, many of which may not be covered.
• Employer or concierge primary care: A small but growing number of large employers now offer expanded annual wellness panels that include ApoB and hs-CRP at minimum. If your benefits package includes this, use it. A concierge primary care physician (typically $100 to $300/month membership) will usually order a full longevity panel annually as part of their service.

For a broader look at how these options compare on price, turnaround, and included markers, the guide to the best biomarkers to test runs through each platform side by side.

Which longevity biomarkers to prioritize if you can only test a few

If cost or access is limited, rank by the combination of prevalence (how likely is this a problem in a typical US adult), reversibility (how much can you move the needle), and risk magnitude (how bad is it if you miss it).

1. ApoB: High prevalence of suboptimal levels, medication-modifiable, predicts the leading cause of death. Do not skip this.
2. Fasting insulin: Catches metabolic disease a decade before glucose does. Cheap and rarely ordered. Extremely high leverage.
3. Lp(a): Only need it once, but 1 in 5 people has a genetic risk factor they have never heard of. Order it once before age 40.
4. hs-CRP: Baseline inflammatory status that ties into nearly every longevity outcome. Quick and inexpensive.
5. Omega-3 index: Most Americans are deficient, supplementation is cheap, and the cardiac mortality data are strong. High return on investment.

If you are already tracking the above five and want to deepen the picture, add homocysteine and DHEA-S. IGF-1 becomes more relevant after 45 or if you are actively working on body composition. GGT and albumin are almost free since they come with a standard CMP.

What people get wrong about interpreting these results

The most common mistake is treating lab reference ranges as longevity targets. Reference ranges are designed to flag frank disease in a population that includes a lot of sick people. An LDL-C of 129 mg/dL is flagged as normal on a standard lipid panel, but an ApoB of 115 mg/dL in a 38-year-old is a problem by longevity standards. Similarly, a fasting insulin of 11 uIU/mL is technically normal on most lab printouts but sits squarely in the insulin-resistance zone when you apply longevity medicine thresholds.

A second mistake is treating a single data point as a verdict. GGT fluctuates with alcohol, dietary changes, and acute illness. Homocysteine varies with recent B-vitamin intake. DHEA-S follows a diurnal pattern. Trending markers over two or three annual draws tells a clearer story than any single result. That is why the year-over-year tracking built into services like Superpower or Function Health has real value beyond just running the labs.

Third: do not optimize longevity biomarkers in isolation. Driving ApoB down with a statin while HOMA-IR climbs because of a poor diet is not a win. The markers interact. Chronic insulin resistance drives hs-CRP up, which drives endothelial damage, which accelerates atherosclerosis regardless of your ApoB. A panel approach that monitors all dimensions simultaneously catches these interactions that single-marker chasing misses.

Talk to a clinician about any values outside the longevity-optimized ranges before starting supplements or medications, especially for markers like IGF-1 and DHEA-S where the dose-response relationship is nonlinear.

Emerging longevity biomarkers worth watching but not yet tracking routinely

A few markers have compelling early data but are not yet ready for routine annual tracking. Glycan Age (glycomics-based biological age) and Phenotypic Age calculators using existing CBC and CMP values are gaining academic traction but lack actionable intervention thresholds. Senescent cell burden proxies (p16-INK4a, certain cytokine panels) are being studied in clinical trials of senolytics but are not commercially standardized. Mitochondrial DNA copy number, available through some research labs, is a promising proxy for cellular energy capacity but has no consensus reference range yet.

For the near term, the 12 markers above capture most of the actionable signal. Adipokines like adiponectin are worth understanding as they reflect fat tissue quality, not just quantity, and are starting to appear in comprehensive functional medicine panels. As the field matures, expect biological age clocks and proteomics panels to become practical tools in the 2027 to 2030 window.

FAQ

What are the best biomarkers for longevity?

The markers with the strongest combined evidence for predicting healthspan are ApoB, Lp(a), hs-CRP, fasting insulin, HbA1c, and omega-3 index. These six cover cardiovascular risk, metabolic health, and inflammatory status, which together account for the majority of preventable premature mortality in the US. Homocysteine, GGT, DHEA-S, albumin, and IGF-1 add meaningful depth to that core panel.

What aging blood tests does a doctor actually order?

A standard annual physical typically includes CBC, CMP (which contains albumin and GGT), a standard lipid panel (total cholesterol, LDL-C, HDL-C, triglycerides), and sometimes HbA1c after age 45. It almost never includes ApoB, Lp(a), fasting insulin, hs-CRP, omega-3 index, homocysteine, or DHEA-S unless you specifically request them or see a functional medicine physician. The gap between what gets ordered and what predicts longevity is large.

How do omega-3 index and longevity connect?

The omega-3 index measures EPA and DHA incorporation into red blood cell membranes, which reflects tissue-level omega-3 status over the prior three months. Multiple large prospective studies, including analyses from the PREDIMED trial and Framingham Heart Study offspring data, link an index below 4 percent to meaningfully elevated cardiovascular mortality. Supplementing with 1 to 3 grams of EPA plus DHA daily typically raises the index by 2 to 3 percentage points over three to four months. It is one of the few longevity markers where a simple, cheap daily intervention reliably moves the number to a healthier range.

Are metabolic markers the most important aging biomarkers?

Metabolic markers (fasting insulin, HbA1c, HOMA-IR, triglycerides, fasting glucose) collectively make a strong case as the highest-leverage category because insulin resistance underlies or accelerates nearly every other aging pathway, from cardiovascular disease to cognitive decline to cancer risk. That said, cardiovascular risk markers (ApoB, Lp(a)) and inflammatory markers (hs-CRP) are in the same tier. The three categories interact, so optimizing one without monitoring the others leaves you with an incomplete picture.

Can longevity biomarkers predict lifespan?

No individual biomarker predicts individual lifespan, but panels of longevity biomarkers have meaningful population-level predictive power for major adverse cardiovascular events, type 2 diabetes onset, and all-cause mortality over 10 to 20-year horizons. ApoB, hs-CRP, and fasting insulin each independently predict cardiovascular events in prospective studies after adjusting for traditional risk factors. The more useful frame is not lifespan prediction but healthspan optimization: these markers tell you which systems are deteriorating faster than they should be for your age, giving you a concrete target for intervention.

What is a healthspan marker versus a disease marker?

A disease marker (like creatinine for kidney function or AST for liver injury) flags organ damage that has already occurred. A healthspan marker catches the upstream processes driving that damage years before organ function deteriorates. ApoB measures atherogenic particle burden before plaque forms. Fasting insulin detects insulin resistance before glucose becomes elevated. The distinction matters because healthspan markers are actionable at a stage when lifestyle changes and targeted supplementation can reverse the trajectory without medications.

How often should I repeat longevity biomarkers?

Annual testing is the right default for most markers. Lp(a) only needs one lifetime measurement in most people because it is genetically fixed. If you are actively working on a specific problem (say, elevated hs-CRP or poor omega-3 index), repeating that marker at 6 months lets you confirm the intervention is working before the next annual draw. DHEA-S is best measured at the same time of day each year (morning) because it follows a diurnal rhythm. For context on how year-over-year trends are tracked, the Superpower review explains how their longitudinal dashboard presents these changes.

Does Medicare cover longevity biomarker testing?

Medicare Part B covers a standard lipid panel and HbA1c every 12 months for beneficiaries with risk factors. It does not cover ApoB, Lp(a), fasting insulin, omega-3 index, homocysteine, or DHEA-S as routine screening. Some may be covered with a diagnosis code (homocysteine is sometimes covered under cardiovascular disease or neuropathy workups; DHEA-S under adrenal evaluation), but coverage is inconsistent and requires a physician order with appropriate documentation. Medicare Advantage plans vary by carrier and may cover additional preventive labs. Cash prices at Quest or Labcorp are often reasonable enough that paying out of pocket for the non-covered markers is more practical than navigating prior authorization.

What is the difference between a longevity panel and a functional medicine panel?

The terms overlap but are not identical. A functional medicine panel is ordered by a functional or integrative medicine physician and often includes gut health markers (zonulin, calprotectin), heavy metals, organic acids, and nutrient levels (magnesium RBC, vitamin D, zinc) in addition to the longevity-focused markers listed above. A longevity panel, as the term is typically used in 2026, focuses specifically on aging pathways: cardiovascular risk, metabolic health, inflammation, hormonal aging, and oxidative stress. Both go well beyond what a standard annual physical orders. The longevity panel is the leaner, more evidence-anchored subset of the broader functional medicine workup.