Biological age tests
DNA methylation (epigenetic) tests that estimate how fast you are aging. Research tools, not a replacement for blood tests.
How we rank biological age tests
- Validated measures 30%
- Lab & method 15%
- What you get 20%
- Your data 20%
- Value 15%
Why, and what each one means
DNA methylation tests read chemical tags on your DNA and feed the pattern to a model, called a clock, that returns a biological age or a pace of aging. They are research tools: faster clocks go with more disease in groups, but a single result can shift with lab noise and everyday conditions (Nature Aging (opens in a new tab), Aging Cell (opens in a new tab)). We weight published, independently tested clocks most, then the lab, what you get, data terms and price.
- Validated measures 30%
- Reports built on published, independently validated clocks (such as DunedinPACE or GrimAge), with the research named. Home-grown scores with no papers count for little.
- Lab & method 15%
- A named CLIA-certified lab and the methylation array it runs.
- What you get 20%
- Plain results with their limits stated, and a download of your raw data.
- Your data 20%
- No sale or sharing of genetic data, de-identified or not, without asking you each time, and deletion on request.
- Value 15%
- Price against the others here that pass.
Each product scores every one from 1 to 5, and its rating is the weighted average. We list only products rated 3 or above that break none of our rules.
We avoid
- Reports that turn a research estimate into a diagnosis or a supplement plan.
- Terms that allow selling or sharing identifiable genetic data.
Read the research
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1 product · best rated first
Every test we compared · 6
Listed or not: what each one measures, how you pay, who reads your results and what it does with your data. Checked November 6, 2026. For measured blood markers, see Lab & biomarker tests.
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TruDiagnostic TruAge Listed · 3.1
A research-grade estimate of how fast you are aging, useful only as one number tracked over time. Repeat samples can shift a clock by years, so it is not a diagnosis.
- Measures
- No separately measured markers. The shop quotes 75+ markers for TruAge, 80+ for TruHealth and 100+ for both; all are estimates predicted from one methylation array of 1,000,000+ sites. The report names DunedinPACE, OMICmAge, 11 organ-system ages and a telomere length estimate.
- Covers
- Methylation clocks Not included: No blood chemistry, lipids, Lp(a) or ApoB: the “biomarkers” are predictions, not measurements
- Price
- $499 for TruAge, $499 for TruHealth, $849 for both (product pages opened 2026-11-06; free shipping advertised in the continental US; all sales final). A four-test annual subscription renews annually and is billed up front: $998 for TruAge, $1,698 for both.
- Retesting
- Buy again when you want, or take the four-test annual subscription ($998). The maker says many customers retest every 3 to 6 months.
- Sample
- At-home finger-prick kit, mailed back as a dried blood spot.
- Lab
- Its own lab in Lexington, KY (CLIA 18D2183496), a certificate of compliance valid to 2026-12-28, not CAP accreditation. Illumina arrays.
- Clinician
- None. No clinic visit or prescription is needed, and nobody follows up on an unusual number. A separate portal lets clinicians order for patients.
- Results
- A portal report 3 to 4 weeks after the lab receives the sample. A download of raw data is not stated; more data is released when a clinician orders through its provider portal.
- Your data
- The 2026 terms let it license or sell de-identified and aggregated data for any lawful purpose, with a consent that cannot be withdrawn and no right to delete that data. Account deletion is offered.
- Sells you
- Its other kit (TruHealth) and a bundle; an affiliate program pays promoters. An affiliate of the company also owns Tally Health, which sells supplements.
- Our call
- The best-documented methylation test, held back by data terms and no clinician. Our full review
Sources: TruDiagnostic shop (opens in a new tab) · Our product page (opens in a new tab)
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Elysium Index Not listed
A biological age estimate. The page says it is not an FDA-approved device and not meant to screen, diagnose or assess disease risk.
- Measures
- No marker count. It reports biological age, a pace of aging (a cumulative rate) and nine system ages (brain, heart, metabolic, immune, inflammation, kidney, liver, hormone, blood), all predicted from DNA methylation.
- Covers
- Methylation clocks
- Price
- $299 a kit, one-time (the product page, opened 2026-11-06). Earlier help text showed it down from $499. No membership.
- Retesting
- Not stated; the page sells one kit at a time.
- Sample
- Saliva sample at home, mailed back (the page says saliva is used for the DNA methylation profile).
- Lab
- Not stated on the pages we opened.
- Clinician
- Not stated.
- Results
- An online report with the biological age, pace and system ages, plus 100+ lifestyle recommendations. A sample report is available on request; raw data download not stated.
- Your data
- Its privacy policy says it does not sell personal information to third parties for money and uses de-identified data for research only with your consent. You can ask for deletion, but data already in a research study stays in it.
- Sells you
- A wide supplement line (Basis, Matter, Signal, a Longevity Starter Pack and others); free enrolment in its own aging research study.
- Our call
- A plainly priced saliva test with system ages, but no lab, clinician or retest advice is stated. Why it isn’t listed: Lab not named, and the company sells supplements
Sources: Elysium Index product page (opens in a new tab) · Elysium privacy policy (opens in a new tab)
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GlycanAge Not listed
An immune-based aging score that moves with lifestyle, according to the maker. Glycan age is far less studied than methylation clocks, and we did not review its validation.
- Measures
- Not a blood chemistry test and not DNA methylation: it reads sugar chains (IgG glycans) on antibodies. It reports four indexes (inflammation, immune protection, vascular resilience, stress and recovery) and a biological age with a stated ±1 year error margin. The number of glycan structures is not given on the pages we opened.
- Price
- $499 for one test; $449 a test on a yearly plan, $424 on a six-month plan, about $400 on a three-month plan (renewing, cancel anytime). Each test includes a 1:1 result call. The shop (opened 2026-11-06) shows $499 struck through and $424 as the current price for one test.
- Retesting
- Every 12, 6 or 3 months on a plan, or buy single tests.
- Sample
- At-home finger-prick kit, returned in a prepaid envelope.
- Lab
- A “CLIA-certified laboratory”, unnamed, with triplicate sample analysis; country and CLIA number not stated.
- Clinician
- A 1:1 call with a longevity specialist (valid for 60 days after results). Not described as a licensed clinician.
- Results
- A dashboard report 3 to 4 weeks after the lab gets the sample, with comparison data and action steps.
- Your data
- Its privacy policy (effective 2026-06-05) says it does not sell or share personal information, and offers access, correction and deletion. It lists marketing and advertising cookies and research and development among its purposes.
- Sells you
- Extra specialist sessions, a recovery-device bundle, and subscription plans.
- Our call
- Interesting science with a clean data policy, but we could not check the lab or the validation. Why it isn’t listed: Lab unnamed and the clock is far less studied than methylation
Sources: GlycanAge test (opens in a new tab) · GlycanAge shop (opens in a new tab) · GlycanAge FAQ (opens in a new tab) · GlycanAge privacy policy (opens in a new tab)
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NOVOS Age Not listed
The same kind of research estimate as TruAge for $150 less. It is not a diagnosis.
- Measures
- No separately measured markers. It reports a biological age from an unnamed third-generation clock, pace of aging (DunedinPACE), organ ages across 11 systems (a Yale algorithm), and an estimated telomere length, from the MethylationEPIC array (850,000 sites). The page also cites “150+ biomarkers”, which are estimates.
- Covers
- Methylation clocks
- Price
- $349 for one kit, $299 each for two or more. No membership. Ships to the US and Canada.
- Retesting
- The maker suggests retesting after 6 to 12 months under the same conditions.
- Sample
- At-home finger-prick blood spot card.
- Lab
- A “certified U.S. laboratory” that is not named; the page cites CLIA and CAP accreditation.
- Clinician
- None described.
- Results
- A 55-page personalized report and a free AI longevity coach, per the page; raw data download not stated.
- Your data
- Says it does not sell personal health data or share identifiable information for advertising, lets you delete your account and data any time, destroys samples after testing, and may use de-identified or aggregated data for aging research. The only terms posted at novoslabs.com are the site’s store terms (last updated 2020): payments are non-refundable and disputes go to binding arbitration. They do not describe the test’s data.
- Sells you
- NOVOS supplements (Core, Boost, Vital), which the page mentions you can keep taking.
- Our call
- A credible lower-price alternative on paper; a first read puts it near 3.4, but the lab is unnamed and no test-specific terms are posted. Why it isn’t listed: Lab unnamed and no test-specific terms; candidate for a page
Sources: NOVOS Age (opens in a new tab)
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Tally Health (TallyAge) Not listed
A biological age estimate from cheek cells. The clock behind it is proprietary.
- Measures
- A single TallyAge number. The page names no clocks or array.
- Covers
- Methylation clocks
- Price
- Not stated for the test. Its shop (opened 2026-11-06) lists only supplements, such as Vitality at $84 (15% off if subscribed; backordered to December 2026). The home page describes a membership with a TallyAge test every six months; third-party sites list $249 a test and about $129 a month, which we could not confirm.
- Retesting
- Every six months on the membership; subscriptions continue until cancelled.
- Sample
- Cheek swab.
- Lab
- Not named (“our lab team”).
- Clinician
- None described.
- Results
- A report in its app; raw data download not stated.
- Your data
- Its privacy policy says an affiliate of TruDiagnostic bought the business on 2026-03-19, and its terms let it share de-identified sample data with its parent for epigenetic research.
- Sells you
- Six supplements (Amplify, Defend, NAD+, Restore, Sharpen, Vitality), one bundled into the membership.
- Our call
- The same company family as TruDiagnostic, with supplements built into the plan. Why it isn’t listed: Price, clocks and lab not stated on its pages, and the membership bundles a supplement
Sources: Tally Health (opens in a new tab) · Tally Health privacy policy (opens in a new tab)
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TruDiagnostic TruHealth Not listed
A predicted health profile built from methylation patterns. It is not a substitute for a blood panel.
- Measures
- Estimates of clinical measures, proteins and metabolites predicted from the same methylation array as TruAge (per the TruAge page). The shop lists 80+ for TruHealth and 100+ with TruAge (90 of them health biomarkers). None is measured in blood.
- Covers
- Methylation clocks Not included: No measured blood chemistry
- Price
- $499 for TruHealth alone; $849 with TruAge ($1,698 for the four-test annual subscription of both). Opened 2026-11-06.
- Retesting
- Buy again when you want.
- Sample
- At-home finger-prick dried blood spot (same as TruAge).
- Lab
- Its own lab in Lexington, KY (CLIA 18D2183496).
- Clinician
- None, as with TruAge.
- Results
- A portal report.
- Your data
- Same terms as TruAge: de-identified data may be licensed or sold with an irrevocable consent.
- Sells you
- The TruAge bundle.
- Our call
- If you want blood markers, buy a blood panel. Why it isn’t listed: The same method and data terms as TruAge, which we do list
Sources: TruDiagnostic shop (opens in a new tab) · Our TruAge page (opens in a new tab)