Function Health review: price, lab and privacy
Yearly membership: 100+ markers at Quest, a mid-year retest and a clinician summary.
By Julian Caraulani · Last updated
9.0/10Excellent$365/yr lowest- Lab: Quest Diagnostics
- Clinician review: included
- Price checked October 31, 2026
It's for you if
- Measures ApoB, Lp(a), fasting insulin, omega-3 and heavy metals in the base price
- Two draws a year included
- Clinicians review every result
It's not for you if
- No refunds for prior payments, and membership auto-renews at the then-current price.
- '160+ lab tests' counts the mid-year retest; the annual draw is 100+.
- NY/NJ residents can be billed lab fees on top of the membership, amount not disclosed upfront.
- Not available in Rhode Island, Hawaii or Puerto Rico.
Quick Facts
People who want the widest yearly panel, retested twice, in one membership.
Ready to choose? See how Function Health compares.
Cross-check Function Health's 9.0/10 against the other 20 programs we track side by side, or skip ahead to its site.
How It Works
Order online
Buy a plan or a test on Function Health's site. A clinician working with the company orders the test, so you do not need your own doctor's order.
Give a sample
In-lab draw at Quest; at-home draw available (fee not published).
Results
Clinicians review every result and write a summary; critical results trigger a provider call. Lab and medical services are provided by independent third parties; Function says it is not a lab or medical provider. Cancellation: Cancel and rejoin anytime; no pauses; no refunds for prior payments; auto-renews annually at then-current price..
What It Sells
Pricing Details
| Plan | Price per year |
|---|---|
Function Membership checked 2026-10-31Two draws a year: the full panel, then a retest of selected markers 3 to 6 months later. Clinician summary of results. source, 2026-10-31 | $365 99 measured markers, $3.69 each |
- Tests
- Longevity memberships
- Lab
- Quest Diagnostics
- Sample
- In-lab draw at Quest; at-home draw available (fee not published)
- Clinician review
- Clinicians review every result and write a summary; critical results trigger a provider call. Lab and medical services are provided by independent third parties; Function says it is not a lab or medical provider.
- Membership
- Not stated on their site
- HSA / FSA
- HSA/FSA eligible, per its own site
- Insurance
- No; self-pay
- States
- 48 states (not RI, HI), per its own site (2026-10-31)
- Cancellation
- Cancel and rejoin anytime; no pauses; no refunds for prior payments; auto-renews annually at then-current price.
- Est. first year
- About $365 on the lowest plan, before one-off fees
Function Health from $365/yr: see the plans on its site.
Cancel and rejoin anytime; no pauses; no refunds for prior payments; auto-renews annually at then-current price.
Is Function Health Legit?
Function Health is an online program where a licensed clinician reviews your health history and decides whether to prescribe. We found no FDA warning letter when we searched on October 31, 2026. On Trustpilot it scores 4.5/5 from 3,102 reviews. Our score is 9.0/10.
- No FDA warning letter found (searched October 31, 2026)
- Names the lab: Quest Diagnostics
- Publishes an all-in yearly price
- States its cancellation terms
- Lab
- Quest Diagnostics. Not stated as CLIA/CAP on Function's pages; Function says it uses 'medical-grade tests and labs that meet the highest clinical standards'.source
- Sample
- In-lab draw at Quest; at-home draw available (fee not published)
- Clinician review
- Clinicians review every result and write a summary; critical results trigger a provider call. Lab and medical services are provided by independent third parties; Function says it is not a lab or medical provider.source
- HIPAA and data use
- Function may act as a HIPAA business associate but says HIPAA does not apply to all data it processes. Says it does not sell personal information other than for targeted advertising; creates aggregated/de-identified data; needs your authorization to use health data for marketing. Claims SOC 2 Type II and 'HIPAA-aligned'.source
- Privacy policy
- Its policy says: "HIPAA does not apply to all personal information that we process."source
- HSA / FSA
- HSA/FSA eligible, per its own site
- Doctor's order
- Ordered through Function's third-party medical providers as part of the membership; no own-doctor order needed.source, checked October 31, 2026
- States
- Not sold in HI, RI. Its site says: "Function is offered in 2,000+ Quest labs across 48 states (but not yet Rhode Island, Hawai'i, or Puerto Rico)."source, checked October 31, 2026
- Legal record
- Function filed a false-advertising suit against Superpower over biomarker counts (C.D. Cal. 2:26-cv-00810, filed Jan 26, 2026). No suit against Function found in our search.source, checked October 31, 2026
Read the full check: Is Function Health legit? →
CLIA certification is a lab-quality licence, not proof a test is useful for you. You can look up any US lab on the CMS QCOR CLIA lookup by name or ZIP code.
What Real Customers Say About Function Health
On Trustpilot, Function Health scores 4.5/5 from 3,102 reviews.
We treat recurring complaints as the useful signal, not the average score: a pattern you can check before you pay is worth more than a star rating. Where the theme is price, note that we re-read Function Health's published prices on its own site and date every one on this page.
Read the reviews →How We Reviewed Function Health
We score every program on the same five criteria, from what its own site publishes: the real all-in price, transparency, care, access and reputation. Commission is not a criterion.
Overall 9.0/10 · prices checked October 31, 2026 · pricing basis: lowest published all-in plan. How each criterion is scored.
What we could not verify
- At-home draw fee amount
- Exact NY/NJ lab fee amount
- Exact Function Day 2026 dates for the $499/2-year offer (search snippets of Function's homepage/FAQ say June 23 to July 1/2; Empirical says June 23 to July 1, 2026; the pricing page still carries a footnote that a Function Day offer expired 10/8/2026, and /c/function-day now 404s)
- CLIA/CAP wording on Function's own pages
- BBB rating
Our Verdict
Function Health scores 9.0/10 in our evaluation, #1 of 21. Its strongest point: measures ApoB, Lp(a), fasting insulin, omega-3 and heavy metals in the base price. Best for people who want the widest yearly panel, retested twice, in one membership.
See how Function Health compares to all programs · Take the quiz to find your match
See Function Health's plans
Starting at $365/year (yearly membership, auto-renews).
Visit Function HealthQuestions
Function Health FAQ
Is Function Health legit?
Function Health is an online program where a licensed clinician reviews your health history and decides whether to prescribe. We found no FDA warning letter when we searched on October 31, 2026. On Trustpilot it scores 4.5/5 from 3,102 reviews. Our score is 9.0/10.
How much does Function Health cost?
From $365 per year (Function Membership, yearly membership, auto-renews).
Is the medication included in Function Health's price?
Its site does not say.
Does Function Health use FDA-approved or compounded medication?
Function Health's site does not say. Compounded drugs are mixed by a pharmacy and are not FDA-approved as finished products.
Does Function Health take insurance?
No; self-pay.
Alternatives to Function Health
Superpower$1998.8/10 · Very good
Best for people who want a broad yearly panel at the lowest membership price.
Superpower reviewVisit Superpower
Empirical Health$1908.6/10 · Very good
Best for heart-focused testers who want ApoB and Lp(a) with a doctor-written report for one payment.
Empirical Health reviewVisit Empirical Health
Labcorp OnDemand$1898.5/10 · Very good
Best for people near a Labcorp center who want a lab-run panel with no membership.
Labcorp OnDemand reviewVisit Labcorp OnDemand