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Lab testing

InsideTracker

Established blood-and-DNA biomarker testing with the strongest customer-service signal in our cohort

Reviewed by Designing Longevity Editorial · last fact-checked May 1, 2026

3.7

out of 5

No financial relationship with InsideTracker. Editorial inclusion only.

Visit InsideTracker

Verdict in one glance

Best for

  • Users who want a DNA layer alongside biomarker testing

    InsideTracker's optional 261-gene-variant DNA analysis is a product line Function Health does not offer at comparable price. For users who want their blood-biomarker recommendations contextualized with genetic data, this is the differentiator.

  • Users who want targeted category tests rather than a full membership

    InsideTracker's category tests start at $99 for specific panels (cardiovascular, metabolic, etc.). For users with a focused question rather than a broad baseline interest, this is more cost-effective than a full Function Health membership.

  • Users who weight customer-service responsiveness

    The 94% sub-week reply rate to negative reviews is unusual in the category and is a meaningful differentiator if customer support matters to you.

Look elsewhere if

  • Cost-sensitive users on a comprehensive panel

    Function Health's $365/year for 100+ biomarkers twice annually is materially cheaper than InsideTracker's roughly $489-$829/year for 1-2 Ultimate panels at 54 markers each.

  • Users specifically interested in epigenetic biological-age testing

    InsideTracker offers an InnerAge calculation but it is age-from-biomarkers, not epigenetic age. For DNA methylation-based biological-age testing, Tally Health is the purpose-built option.

Our take

InsideTracker is a credible alternative to Function Health for DTC biomarker testing, with three differentiators that matter: a 15-year track record (founded circa 2009), peer-reviewed methodology research published in PubMed Central, and the strongest customer-service responsiveness signal in our lab-testing cohort (94% reply rate to negative reviews within one week). The honest counterweight: Function Health is meaningfully cheaper on a panel-per-dollar basis ($365/year for 100+ markers per draw twice a year vs InsideTracker's roughly $489-$829/year for 1-2 Ultimate tests at 54 markers each). Choose InsideTracker if you want the DNA add-on, smaller targeted panels, or the company's longer track record and customer-service responsiveness; choose Function for the broadest panel at the lowest annual cost.

Pros

  • 15+ year track record (founded circa 2009 as Segterra, Inc.)
  • Peer-reviewed methodology research published in PubMed Central, an unusual transparency signal
  • 4.1/5 across roughly 290 reviews; 94% reply rate to negative reviews within one week
  • DNA analysis add-on (261 gene variants) is a product line Function Health does not offer
  • Smaller category tests starting at $99 for users who want targeted panels rather than full membership
  • HSA/FSA eligible (effective 25-35% pre-tax discount)

Cons

  • NOT Accredited; BBB profile in the computer-software category rather than medical-lab
  • Membership-plus-test pricing is meaningfully more expensive than Function Health on a per-data-point basis
  • Smaller blood panel (54 biomarkers vs Function Health's 100+)
  • Per-test cost ($340-$589) surfaces post-membership and can surprise users who treated $149 as the all-in price
  • Smaller external review sample than Function Health (290 vs 1,009)

Pricing

$149/yr membership + $99-$589 per test (member discounts apply)

Turnaround

Lab draw at any Quest location; 7-14 days for results

States served

All 50

Last verified

May 1, 2026

What InsideTracker says, and what we found

The provider's own marketing claims, paired with our verdict. Color-coded so you can scan: green for verified, amber for stated-but-unconfirmed, violet for context.

VerifiedPanel breadth

Confirmed against the public store. The DNA add-on is one of the differentiators against Function Health.

InsideTracker measures up to 54 biomarkers on the Ultimate blood panel and offers an optional DNA Kit analyzing 261 gene variants.

InsideTracker product pages · captured May 1, 2026 · source

ContextOutcome

Company-published figure from internal cohort data. We did not independently verify the 80% figure but the supporting peer-reviewed PMC paper documents the longitudinal-improvement methodology.

80% of InsideTracker customers improve at least one at-risk biomarker by bringing it into the optimal range.

InsideTracker product page · captured May 1, 2026 · source

Rubric breakdown

How this is scored

Licensure

20% weight
4.0/5

Active state license, no recent disciplinary actions, no FDA enforcement.

Established Cambridge, MA company (Segterra, Inc.) operating since circa 2009. No on InsideTracker or Segterra verified against the FDA warning-letter database at capture date. Peer-reviewed methodology research published in PubMed Central.

What we verified (3)

  • No FDA warning letter on InsideTracker / Segterra

    Federal database

    Checked May 1, 2026 · source

  • Segterra, Inc., Cambridge MA

    Business filing

    Operating entity is Segterra, Inc. d/b/a InsideTracker. Cambridge, MA. Track record going back to circa 2009; 100,000+ customers per company-published figures.

    Checked May 1, 2026 · source

  • Peer-reviewed methodology research

    Scientific provenance

    Longitudinal analysis of biomarker data from the InsideTracker platform published in PubMed Central, an unusual transparency signal for DTC biomarker testing.

    Checked May 1, 2026

Accreditation

20% weight
3.0/5

PCAB, LegitScript, NABP, USP <797> stack.

NOT Accredited. The BBB profile is in the computer-software category (vs Function Health which is medical-lab). CLIA certification lives at the lab-partner level; InsideTracker partners with national lab networks for blood-draw fulfillment.

What we verified (2)

  • BBB profile, NOT Accredited

    Accreditation

    Computer-software category in Cambridge, MA. Profile exists but accreditation has not been pursued.

    Checked May 1, 2026 · source

  • CLIA-certified lab partner network

    Underlying lab certification

    Blood draws fulfilled at CLIA-certified national lab partners (Quest, etc.). Lab-partner certification is the relevant accreditation for the underlying testing.

    Checked May 1, 2026

Transparency

20% weight
4.0/5

CoAs, ingredient sourcing, formulation disclosure.

Pricing structure is published clearly across membership tiers, single-test purchases, and category-specific tests. Healthspan Categories framework is documented publicly. The per-test cost on top of membership is the most common point of post-signup confusion; we flag that explicitly so it is not a surprise.

What we verified (3)

  • Membership and test pricing published

    Pricing transparency

    $149/year membership; Ultimate test $589 standalone or $340 with membership; category tests from $99; InnerAge add-on $99.

    Checked May 1, 2026 · source

  • Healthspan Categories methodology documented

    Care-model transparency

    10 published Healthspan Categories tied to specific biomarker groups. Recommendations map to the same framework consistently.

    Checked May 1, 2026 · source

  • Membership-vs-test cost breakdown surfaces post-membership

    Pricing transparency

    Some users describe the $149 membership as the sticker price and only realize the per-test cost ($340-$589 for Ultimate) at checkout. complaints surface this pattern. Worth knowing before signing up.

    Checked May 1, 2026 · source

Product quality

15% weight
4.0/5

Independent test results, recall history, supply-chain controls.

Up to 54 biomarkers on the Ultimate blood panel plus optional 261-gene-variant DNA analysis. Recommendations are personalized rather than generic, mapped to the published Healthspan Categories framework. Established track record (15+ years) and peer-reviewed methodology research are unusually strong signals for the category.

What we verified (3)

  • 54 biomarkers on Ultimate blood panel

    Panel breadth

    Ultimate panel covers cardiovascular, metabolic, hormonal, inflammatory, vitamin/mineral, and performance markers. Smaller than Function Health (100+) but more than basic-tier competitors.

    Checked May 1, 2026 · source

  • DNA add-on with 261 gene variants

    Panel breadth

    Optional one-time DNA analysis adds genetic context to the blood-biomarker recommendations. Function Health does not offer comparable DNA layer.

    Checked May 1, 2026

  • No FDA recalls on InsideTracker product

    Recall history

    Checked May 1, 2026 · source

Pricing

15% weight
3.5/5

Value within the category, no surprise fees, refund policy.

Membership ($149/year) plus per-test cost (Ultimate at $340 with membership) lands roughly $489/year for one Ultimate test, $829 for two, or $1,305-$1,781 for the bundled 4-test annual tier. Function Health's all-inclusive $365/year for two semi-annual full panels is meaningfully cheaper on a panel-per-dollar basis. Where InsideTracker pricing makes sense: smaller targeted panels (category tests from $99) or the DNA add-on, both of which Function does not offer at comparable price points.

What we verified (4)

  • $149/year membership; tests priced separately

    Pricing transparency

    Checked May 1, 2026 · source

  • Ultimate test pricing: $589 standalone, $340 with membership

    Pricing transparency

    Checked May 1, 2026 · source

  • 4-test annual tier $1,305-$1,781

    Pricing transparency

    For users who want quarterly testing, the bundled tier is more cost-effective per test than buying Ultimate tests individually with membership.

    Checked May 1, 2026 · source

  • HSA/FSA eligible

    Coverage

    Pre-tax pathway provides a roughly 25-35% effective discount depending on tax bracket. Standard for the category.

    Checked May 1, 2026

Customer service

10% weight
4.0/5

Refund policy, support quality, complaint history.

4.1/5 across roughly 290 reviews with no fraud notice. Most differentiated signal: 94% of negative reviews receive a company response in under one week, the strongest customer-service responsiveness signal in our lab-testing cohort. The tradeoff is the smaller review sample compared to Function Health (290 vs 1,009).

What we verified (2)

  • Trustpilot 4.1/5 across roughly 290 reviews

    External review

    No suspected-fraudulent-review notice on the page at capture date. 94% of negative reviews receive a company response in under one week.

    Checked May 1, 2026 · source

  • Sub-week response rate to negative Trustpilot reviews

    Operational

    The 94% reply rate within one week is unusual in DTC lab testing and meaningfully better than the cohort average. Indicates active customer-service investment.

    Checked May 1, 2026

Public reviews

What we found across third-party review platforms. These are external sentiment signals, not our scoring inputs.

Trustpilot

4.1/5 across roughly 290 reviews. No suspected-fraudulent-review notice. The most differentiated signal: 94% of negative reviews receive a company reply within one week, the strongest customer-service responsiveness signal in our lab-testing cohort. Positives concentrate on personalized recommendations and the DNA add-on; negatives concentrate on per-test pricing surprises post-membership and the perceived genericness of some action plans.

Captured May 1, 2026Source

Better Business Bureau

NOT Accredited. Computer-software category in Cambridge, MA. Lower-volume profile than Function Health's medical-lab profile.

Captured May 1, 2026Source

What to expect

  1. 1

    Choose membership or single test

    5 min

    $149/year membership unlocks discounted tests; or buy a single Ultimate test ($589 standalone) or a category test ($99+) without membership.

  2. 2

    Schedule blood draw

    1-2 weeks until appointment

    Lab kit instructions sent; draw at a partnered Quest location nationally. DNA add-on is a separate cheek-swab kit.

  3. 3

    Personalized recommendations

    7-14 days

    Results return in 7-14 days, mapped to the 10 published Healthspan Categories. Recommendations include nutrition, supplement, lifestyle, and (where appropriate) clinician-follow-up suggestions.

  4. 4

    Re-testing cadence

    Ongoing

    Membership lets you re-test at member pricing. Most users on the bundled annual tier test quarterly.

Accreditations

State pharmacy/clinic license

Verified · May 1, 2026

Frequently asked

Is InsideTracker legit?

Yes, and meaningfully so. InsideTracker is operated by Segterra, Inc. and has been running since circa 2009 (15+ years, the longest track record in our lab-testing cohort), with peer-reviewed methodology research published in PubMed Central and over 100,000 customers per company-published figures. 4.1/5 across roughly 290 reviews with no fraud notice; the platform replies to 94% of negative reviews within one week, the strongest customer-service responsiveness signal in our cohort. No ; no active manufacturer lawsuits. The honest counterweight is NOT -accredited (the BBB profile is in the unusual computer-software category) and a per-test pricing structure ($340-$589 per Ultimate panel on top of the $149/year membership) that surfaces post-membership and can surprise users. For users who want a DNA layer or category-specific tests, InsideTracker is differentiated; for the broadest biomarker panel at the lowest annual cost, Function Health is the default.

How does InsideTracker compare to Function Health?

Function Health's $365/year for two semi-annual full panels covering 100+ biomarkers each is materially cheaper than InsideTracker's $149 membership plus $340 per Ultimate test (54 biomarkers each). Function wins on panel-per-dollar value. InsideTracker wins on customer-service responsiveness (94% reply rate to negative reviews within one week), DNA-add-on availability (261 gene variants, which Function does not offer), and category tests starting at $99 for users who want a targeted panel rather than a full membership.

What's actually in the $149 membership?

The $149/year membership unlocks discounted test pricing (Ultimate drops from $589 to $340), member access to the recommendation platform, and re-testing at member pricing. The membership alone does not include a blood draw; tests are purchased separately. This pricing structure is the most common source of post-signup billing surprise; the $149 is not the all-in cost for actually getting tested.

Does InsideTracker accept insurance?

No commercial insurance, consistent with the rest of the DTC lab-testing category. HSA and FSA cards are accepted, which provides a 25-35% effective pre-tax discount depending on your tax bracket.

Should I add the DNA Kit?

It depends on whether you have an existing genetic test (23andMe or AncestryDNA raw data can be uploaded for free as an alternative to buying the InsideTracker DNA Kit). If you do not have existing DNA data and you specifically want gene-variant context for your biomarker recommendations, the DNA add-on is one of the few places InsideTracker is meaningfully differentiated from Function Health. If you do not value the genetic layer, skip it; the 54-biomarker blood panel is the main product.

How does InsideTracker compare to Tally Health?

Different products. Tally Health is purpose-built for epigenetic biological-age testing ($129-$159/month membership). InsideTracker measures up to 54 blood biomarkers plus an optional DNA layer ($149/yr membership + per-test cost). InsideTracker's InnerAge calculation is age-from-biomarkers, not epigenetic age (DNA methylation-based), so it is a different methodology than Tally's TallyAge metric. For comprehensive biomarker context, InsideTracker; for the epigenetic-age question specifically, Tally.

Update history

Every meaningful change to this profile, with a date stamp. We don't silently re-score.

  1. May 1, 2026

    Initial published profile. Sources HEAD-checked at publish time. Score (3.7) reflects the strongest customer-service responsiveness signal in our lab-testing cohort, the 15-year track record, and peer-reviewed methodology, weighed against the materially higher per-data-point cost vs Function Health.

Compare InsideTracker head-to-head

Stuck choosing? We pick a winner per use case in the comparisons below.

vs Function Health

Independent head-to-head: Function Health vs InsideTracker. 100+ biomarkers at $365/year vs 54 plus optional DNA at $149 membership.

See verdict

vs Tally Health

Independent head-to-head: InsideTracker vs Tally Health. A 15-year biomarker platform with DNA vs focused epigenetic age testing.

See verdict

Reviewed by Designing Longevity Editorial. Last fact-checked May 1, 2026.

Spot something out of date or wrong? Let us know and we'll re-check.

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