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Our biological-age test pick

TruDiagnostic TruAge Test

Single at-home finger-prick kit, one-time purchase

$499US price, checked Oct 13, 2026

Multi-clock epigenetic age report from one finger-prick kit

Check price at TruDiagnostic Full review →

Epigenetic age test

TallyAge Test

One-time TallyAge Test Kit, at-home cheek swab

$249US price, checked Oct 13, 2026

At-home cheek-swab epigenetic age test built on Tally's CheekAge clock

Check price at Tally Health Full review →

Criterion	TruDiagnostic TruAge Test	TallyAge Test
US price	$499Checked Oct 13, 2026 · Price details in the review	$249Checked Oct 13, 2026 · Price details in the review
Three-year ownership estimate	$499 Planning total.	$249 Planning total.
Choose if	An adult who wants several DNA methylation aging scores, including DunedinPACE, from one sample taken at home, and who'll treat them as research measures rather than a diagnosis.	An adult who wants an epigenetic age estimate without a blood draw and plans to retest several times.
Main trade-off	Repeat testing gets expensive at $499 a test with no refunds after shipping, the $998 4-test subscription lowers the per-test price but is final sale, and the reproducibility study isn't named.	Tally says a reliable trend takes at least five to nine tests, at $249 a kit or through a $129-a-month membership.
Key specifications	Reports: OMICmAge biological age, DunedinPACE pace of aging, 11 organ-system age scores, telomere length, 12-cell immunity, inflammation score (CRP and IL-6), grip strength and gait speed, smoking and alcohol impact scores Biomarkers: 75+ from one sample, per TruDiagnostic Methylation sites: 1,000,000+ DNA methylation sites analyzed, per TruDiagnostic Sample method: A few drops of blood from an at-home finger prick, mailed back in a prepaid USPS envelope Turnaround: 3 to 4 weeks after the lab receives the sample Lab: CLIA-certified, per TruDiagnostic. CMS's provider file lists an active CLIA lab under the TruDiagnostic name in Lexington, Kentucky, with a certificate of compliance that runs to December 28, 2026. The page doesn't mention CAP accreditation or FDA status Reproducibility: 98% test-retest reproducibility, per TruDiagnostic, which doesn't name the study behind the figure Retesting: One-time kit. TruDiagnostic's online store lists an annual subscription with 4 tests for $998, billed up front and renewing every year. It's final sale. TruDiagnostic says many customers retest every 3 to 6 months HSA/FSA: Qualifies for HSA/FSA reimbursement, per TruDiagnostic	Sample method: At-home cheek swab, mailed back with a prepaid return label Turnaround: 6 to 8 weeks, per Tally. The help center says 4 to 6 weeks once the lab receives the sample Report: Your epigenetic age, viewed online. The product page lists a personalized action plan only as a membership benefit and doesn't mention a pace-of-aging score Clock basis: Tally's CheekAge clock, built from cheek swabs of 8,045 adults aged 18 to 93 Test-to-test variation: Fluctuations of around two years are normal, per Tally, which suggests at least five to nine tests to see a trend Lab: The page says "lab analyzed" but doesn't name the lab or mention CLIA or CAP. Its only FDA text is a general disclaimer Retesting: One-time kit. The membership is $129 a month for a test every six months, action plans and a daily supplement. You can cancel anytime HSA/FSA: HSA/FSA eligible, per Tally
Exact variant	Single at-home finger-prick kit, one-time purchase	One-time TallyAge Test Kit, at-home cheek swab
Dimensions	There's no device. It's a mail-in finger-prick blood collection kit, and TruDiagnostic doesn't give the kit's size or itemize its contents.	There's no device. It's a mail-in cheek-swab kit, and Tally doesn't give the kit's size.
Installation	No installation or lab visit. You prick your finger at home, collect a few drops of blood and mail the sample back in the prepaid USPS envelope.	No installation or lab visit. You swab the inside of your cheek, register the kit online and drop it in the mail with the prepaid return label. Tally says samples stay viable for 60 days after collection but asks you to send them as soon as possible.
Materials	Not stated by the manufacturer. The product page says the kit ships with everything you need to test at home, but it doesn't list the contents.	Not stated by the manufacturer. Tally says the kit includes a unique barcode for registering the test, but it doesn't list the full contents.
Warranty	Not stated by the manufacturer. TruDiagnostic's refund policy says it sends a free replacement kit when something outside your control goes wrong during delivery or use. Examples include too little blood in the sample or a package lost or damaged in transit. A kit lost or damaged in transit from its warehouse is also replaced free. Only one free replacement is guaranteed.	Not stated by the manufacturer. The refund policy asks you to contact Tally right away if an item arrives defective, damaged or wrong. Tally doesn't say what happens if a sample fails, although Tally's online store lists a $0 "Replacement" option.
Returns	Once an order ships, all sales are final. There are no refunds, including for dissatisfaction with results, used or damaged kits, or orders cancelled after shipping. If a first sample fails, TruDiagnostic may send another kit. If both samples fail because of a laboratory error, the policy offers a full refund, including shipping and transaction fees. Annual subscriptions are also final. Kits bought at events or from third-party retailers are non-refundable unless the point of sale says otherwise. The policy is effective as of April 2, 2025.	Tally takes returns of items in the condition you received them, unused and in the original packaging, with proof of purchase. You have to email hello@tallyhealth.com first, and Tally sends a return label if it accepts the return. Approved refunds go back to the original payment method within 10 business days. The policy gives no return window and no effective date. Tally's terms say membership fees are non-refundable.
Unresolved questions	Shipping cost An itemized list of what's in the kit Whether the subscription's 4 kits ship together or across the year The subscription's renewal notice and cancellation terms How the 98% test-retest reproducibility figure was measured Whether the telomere, CRP, IL-6, grip strength and gait speed results are measured directly or estimated from DNA methylation, since the page doesn't say how they're derived from a blood sample The OMICmAge paper's competing-interest statement, which wasn't in the article text reviewed, though the paper says the study's samples were shipped to TruDiagnostic for methylation processing Whether the "TruAge Test" listing is the "TruAge COMPLETE" test: it promises the age of 11 organ systems and lists SYMPHONYAge among its reports, but the page's science section says organ-system access requires "a new TruAge COMPLETE test or upgrading a previous COMPLETE analysis" and doesn't name this listing Whether it's available in every state, including New York A minimum age, since the page only says the test is built for adults CAP accreditation and FDA status, neither of which the product page mentions	The lab that processes samples, its CLIA number and any CAP accreditation Whether samples now go to Infinite Epigenetics' CLIA-certified lab Whether TallyAge uses the published CheekAge model unchanged Whether a failed sample gets a free replacement kit Who qualifies for the $234 "Membership one-off" price on Tally's online store Whether the membership bills every calendar month or every 28 days The return window for an unopened kit How the 62% member-improvement figure was measured An itemized list of what's in the kit The test's FDA status, since the page carries only a general FDA disclaimer

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.