Products · Lab & biomarker tests · Function Health

Function Health membership

A $365-a-year membership with 112 measured Quest markers, 54 drawn twice, and clinician notes. It also sells IgG add-ons, owns the supplement-rating firm SuppCo, and renews at the then-current price.

Best for Adults who want the broadest annual panel for the price, with a clinician’s notes, and will skip the IgG add-ons and the supplement club. It suits people who value breadth over a few targeted tests.

Our rating: Good (4.0 of 5)
Price range: Mid-range
Verified marks: CLIA certificate of accreditation (CAP) for Quest labs such as Clifton, NJ (CLIA 31D0696246, valid to 2027-02-27); Function says Quest runs its tests
Size: 160+ lab tests a year: 112 measured markers (54 of them drawn twice) and 16 calculated values, at Quest sites or by a home draw

approx. $365 a year (renews at the then-current price); add-on tests and imaging cost extra, and lab fees in New York and New Jersey are billed separately

See it on Function Health’s site → (opens in a new tab)

We are not affiliated with Function Health. This link goes to the maker’s own page, with no tracking code. How we're funded.

Also sold at Amazon ($365) .

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How we evaluated it

How it scores Our rating, metric by metric Good, 4.0 of 5

What it measures 25% of the rating 5 of 5

The membership lists 112 distinct measured markers plus 16 calculated ones, including Lp(a), ApoB, hs-CRP, insulin, HbA1c, full thyroid with antibodies, kidney, liver, blood count, vitamin D, iron and omega-3; the “160+ tests” figure counts 54 retested markers twice.
Lab quality 20% of the rating 4 of 5

Quest runs the tests (2,000+ Quest sites) and CMS lists Quest labs as CAP-accredited, but Function is not a lab and does not say which site handles your sample.
Results & follow-up 20% of the rating 4 of 5

Function says every result comes with clinician notes, a healthcare provider calls about critical values, and you can download a PDF, all on its own word; the first results can arrive within 48 hours and a home draw takes about two weeks.
Your data 20% of the rating 2 of 5

It does not sell data outside advertising, keeps health data from ad partners and lets you delete your data, but its policy allows sharing personal information with research partners, it now owns the supplement-rating company SuppCo, and its add-ons include IgG food-sensitivity tests.
Value 15% of the rating 5 of 5

$365 a year buys 112 measured markers drawn once or twice, about $2.20 per measured value, among the lowest here, though the renewal price is whatever is “then-current”.

The rating, 4.0 of 5, is the weighted average of these scores. See how we rank lab & biomarker tests and our standard.

Where to buy Stores and the prices we saw 1 store

Amazon (opens in a new tab) approx. $365. Sold by Function Health, Inc. (the brand itself) and shipped by Amazon. It is a prepaid one-year code, mailed to you, that you redeem on functionhealth.com with a card and automatic renewal; the listing says the purchase is not refundable. We did not buy it.

Prices as we saw them on November 5, 2026. They change often. These links carry no tracking code and earn us nothing.

Who tested it What each test found, and who paid for it 1 test

Paid certification College of American Pathologists, as recorded in the CMS CLIA database (for Quest) February 2025

CMS lists Quest’s Clifton, NJ lab (CLIA 31D0696246) as accredited by CAP from 2025-02-28 to 2027-02-27. Function does not say this is the site that runs its samples, and CAP checks lab procedures, not Function’s reports. Open ↗ (opens in a new tab)

Who paid, and why it matters

Independent The tester took no money from the maker for it: a consumer group, a journalist, a university or a regulator.
Paid certification An outside lab or certifier tested or listed it, and the maker paid for that.
Maker’s own test A lab report or certificate of analysis the maker commissioned and published.

A certification is a floor, not a verdict: it checks what its program checks and nothing else. We weigh tests by someone with no stake in the result most.

What people ask Worries raised online and elsewhere, and what we found 8 questions

Is it a way to sell me supplements?: In May 2026 Function bought SuppCo (opens in a new tab), a supplement-rating app, and its how-it-works page (opens in a new tab) lists a SuppCo Buying Club that gives credits back on supplement spending. Function says SuppCo “does not directly profit from the sale of supplements”. We could not check how the club’s credits are paid for. SuppCo also rates 35,000+ products and runs a certification program, TESTED by SuppCo; we did not check who pays for either.
Do the doctors and influencers who promote it have a stake?: Mark Hyman is a co-founder and its chief medical officer. Andrew Huberman sits on its Medical & Scientific Board (opens in a new tab), and Function is listed as a sponsor on his podcast sponsors page (opens in a new tab). Neither page says whether board members are paid or hold equity. Function also pays members $25 per successful referral and invites creators to partner with it (FAQ (opens in a new tab)). McGill University’s Office for Science and Society argued in June 2025 that functional medicine, which Hyman champions, tests for as many things as possible and loads patients up with supplements, and it names Function Health as Hyman’s program (article (opens in a new tab)). That is a critique of the field, not of Function’s lab results.
Why does a testing company sell IgG food-sensitivity tests?: They are an optional add-on on its test list (opens in a new tab), and its Amazon listing (opens in a new tab) names food sensitivities among the member-priced add-ons. Function describes the IgG add-on as a way to find foods behind chronic inflammation, IBS, migraines and some autoimmune diseases. The AAAAI (opens in a new tab) calls IgG food panels a myth: no single test can show food sensitivities, and these tests have never been scientifically proven to do what they claim. Skip the add-on; the membership works without it.
Is it really 160 tests?: Not 160 different markers. Its test list shows 112 measured markers and 16 values calculated from them; 54 of the measured markers are drawn again midway through the year, which is how 100+ at the first visit and 60+ at the second add up to “160+”.
Do more tests make healthy people healthier?: Not shown. A Cochrane review (opens in a new tab) of 17 trials of general health checks found little or no effect on deaths. Function’s pages say its testing is “5x more than the average physical” and that “what could cost you $15,000 is $365”; we found no source for the $15,000 figure.
What happens to my data, and can I take it with me?: Its privacy policy (opens in a new tab) (updated 2026-02-13) says it does not sell personal information except for advertising, does not use health data for ads, may share personal information with research partners and may share de-identified data with third parties for business and research purposes. You can download results as a PDF (opens in a new tab), delete your data, or connect your results to AI chat tools you choose.
Will the renewal surprise me?: The terms (opens in a new tab) renew you automatically at the then-current price and allow a refund only within 48 hours of purchase if no sample has been taken; the code sold on Amazon is marked not refundable. On Trustpilot (opens in a new tab) (4.5 of 5 from 3,077 reviews, as we read it) a reviewer called the renewal charge sneaky and another could not get replies to emails.
Has anyone tested it independently?: We found no independent test of Function’s results or reports. A search for outside reviews returned mostly affiliate blogs and coupon pages, which we did not use.

Why we chose it What put it on our list 5 points

Quest runs the tests. Function’s FAQ names Quest and 2,000+ Quest locations, and CMS lists Quest labs as certificates of accreditation by CAP. Function says it is a technology company, not a lab or a medical provider.
A clinician reviews each order and result. Function says clinicians review every result and write notes, a healthcare provider calls about critical results, and a clinician can decline to order tests.
The membership is the broadest we found: 112 measured markers, including Lp(a), ApoB, homocysteine, thyroid antibodies, kidney, liver and iron, for $365 (down from $499 in November 2025, per its news page). It is HSA/FSA eligible.
You can take your results with you: a PDF download for your own doctor, and an option to delete your data.
Its privacy policy (updated 2026-02-13) says it does not sell personal information apart from advertising-related sharing, does not use health data for ads and does not give health or genetic data to advertising partners.

Trade-offs What to weigh before you buy 6 points

It sells IgG food-sensitivity tests as an add-on, which the AAAAI says have never been scientifically proven to do what they claim. It also lists a mold and environmental toxin response add-on and the Galleri multi-cancer test, which we did not review. None is needed for the membership.
Results lead toward products. Function bought the supplement-rating company SuppCo in May 2026, membership benefits include the SuppCo Buying Club, and results come with food and supplement guides. We did not review SuppCo or the guides.
The data terms are looser than a lab’s. Personal information can go to research partners, and de-identified data to third parties for business and research uses. Function’s own policy says HIPAA does not apply to all the information it holds.
The marketing reaches further than the evidence: “5x more than the average physical” and “what could cost you $15,000 is $365”. A 2019 Cochrane review of trials of general health checks found little or no effect on deaths.
It renews automatically at the then-current price, and refunds are limited to 48 hours with no sample taken (a code bought on Amazon is marked not refundable). It is offered in 48 states, not Rhode Island, Hawaii or Puerto Rico. In New York and New Jersey the $365 does not cover lab fees, which the lab bills separately; the Amazon listing says up to about $248 a year in New York.
Rechecked 2026-11-05: the price is still $365 a year for two draws (an annual 100+ test visit and a 60+ test follow-up 3 to 6 months later). The FAQ says you must use the mid-year test before the annual renewal, unused tests do not roll over, pausing is not allowed (you can cancel and rejoin), and prior payments are not refunded. Add-on tests cost extra at member prices, and the Annual MRI is $999.

What to know Details worth knowing first

Function Health is a membership, not a lab. You pay $365 a year, a clinician reviews the order and the tests run at Quest, with notes written for you. The first visit covers 100+ markers and a second round midway through the year repeats about 54 of them and adds a few more. Its “160+ tests” counts those repeats; the list holds 112 measured markers, including Lp(a) and homocysteine. For the price it is the broadest panel we found.

Treat it as a broad check, not a diagnosis. Trials of general health checks, which screen for many conditions at once, found little or no effect on deaths, and testing more markers can turn up findings that need follow-up. Read the results with a clinician; see when home remedies are not enough.

Several things on the site point the wrong way. It sells IgG food-sensitivity tests as add-ons, which the allergy society AAAAI says do not do what they claim. It owns the supplement-rating company SuppCo and promotes a supplement buying club to members. Its podcast sponsorships and board members tie it to well-known health influencers, and its data terms let it share personal information with research partners. None of that is needed to use the membership: skip the add-ons and the club. If you only want a few markers, single tests from Quest Health or Labcorp OnDemand have simpler data terms.

What we checked Each claim, and how sure we are of it 5 checks

How Function Health membership measures up against our lab & biomarker tests criteria
What we checked	What we found
A certified lab Verified	Function names Quest Diagnostics. CMS lists Quest labs, such as Clifton, NJ (31D0696246), as certificates of accreditation by CAP. Function does not say which Quest site runs a given sample.
Clinician review Maker’s claim	Function says clinicians review every result and write notes, and that a healthcare provider calls about critical results. Its terms say a clinician may decline tests, and Function says it is a technology company, not a medical provider; independent providers supply the care.
Validated markers Maker’s claim	Mostly standard clinical markers, including Lp(a), ApoB, homocysteine and vitamin D. A “biological age” is calculated from routine blood markers; we could not confirm which formula. Add-ons include IgG food sensitivities, a mold and environmental toxin response panel and the Galleri multi-cancer test. No epigenetic clocks.
Your data protected Maker’s claim	Says it does not sell personal information outside advertising, keeps health and genetic data away from ad partners and offers deletion. It may share personal information with research partners and de-identified data with third parties for business and research purposes.
Clear pricing Maker’s claim	$365 a year, shown on the home, pricing and FAQ pages, with auto-renewal at the then-current price. Add-ons and imaging are extra. A page footer calls $365 the first-year price and says the full 160+ tests are included in all states except New York and New Jersey, where the terms say lab fees are billed separately by the lab. A November 2025 news post says $365 applies to joining, renewing or gifting, and the terms let it renew at the then-current price.

What the labels mean

Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.

Sources Where our facts come from 18 sources

Function Health pricing page. Maker’s page. Seen 2026-10-23: $365 a year, renews at the then-current price. Open ↗ (opens in a new tab)
Function Health: what we test. Maker’s page. Lists the biomarkers, which are repeated and which are calculated (we counted 128 included: 112 measured and 16 calculated, 62 of them tested twice, 54 of those measured), and the add-ons, including Food Sensitivities (IgG) and Mold and Environmental Toxin Response. Open ↗ (opens in a new tab)
Function Health: how it works. Maker’s page. 100+ biomarkers at the first visit, 60+ midway; “personalized food and supplement guides”; the SuppCo Buying Club; results about 2 weeks after a home draw. Open ↗ (opens in a new tab)
Function Health FAQ. Maker’s page. Names Quest, covers PDF download, critical-result calls, first results within 48 hours, deletion, referral payments ($25), the “5x more than the average physical” line, states (48, not RI, HI or PR), higher testing costs in NY and NJ and creator partnerships. Open ↗ (opens in a new tab)
Function membership is now $365/year (Function news, 2025-11-20). Maker’s page. Says the price is down from $499 and applies to joining, renewing or gifting. Open ↗ (opens in a new tab)
Function Health about page. Maker’s page. Leadership and its Medical & Scientific Board, which includes Mark Hyman and Andrew Huberman. Open ↗ (opens in a new tab)
Function Acquires SuppCo to Bring Trust and Clarity to Supplements (2026-05-12). Maker’s page. Function’s announcement; says SuppCo does not directly profit from the sale of supplements. Open ↗ (opens in a new tab)
Huberman Lab sponsors page. Independent source. Lists Function Health among the podcast’s sponsors. Open ↗ (opens in a new tab)
Function Health terms of service (last updated 2026-10-07). Maker’s page. Auto-renewal at the then-current price, the 48-hour refund rule, clinician-declined tests and the arbitration clause. Open ↗ (opens in a new tab)
Function Health privacy policy (last updated 2026-02-13). Maker’s page. The consumer health data policy (updated 2025-08-01) is at functionhealth.com/legal/consumer-health-data-privacy-policy. Open ↗ (opens in a new tab)
Function Health reviews on Trustpilot. Independent source. Seen 2026-10-23 through a page summary: 4.5 of 5 from 3,077 reviews, 75% five-star. Trustpilot does not check reviews. Open ↗ (opens in a new tab)
Amazon listing: Function Health annual membership (ASIN B0FDDPPQC9). Independent source. Seen 2026-10-23 in a browser tab. $365, sold by Function Health, Inc., shipped by Amazon. A prepaid code redeemed on functionhealth.com; says the purchase is not refundable and that New York lab visits carry an extra fee of up to about $248 a year. Open ↗ (opens in a new tab)
Functional Medicine Is a Pipeline to Alt Med (McGill Office for Science and Society, 2025-06-12). Independent source. A critique of functional medicine as practiced by Mark Hyman and others; mentions Function Health as Hyman’s program. It does not test Function’s results. Open ↗ (opens in a new tab)
CMS CLIA record: Quest Diagnostics Incorporated, Clifton, NJ (31D0696246). Certifier or regulator listing. Certificate of accreditation, accrediting organization CAP. Function does not say this is the site that runs its samples. Open ↗ (opens in a new tab)
AAAAI: The myth of IgG food panel testing. Independent source. The allergy society’s position on IgG food panels. Open ↗ (opens in a new tab)
General health checks in adults for reducing morbidity and mortality from disease (Cochrane review, 2019). Independent source. 17 trials; 15 reported outcomes in 251,891 participants; PMID 30699470. Open ↗ (opens in a new tab)
Function Health pricing page (rechecked 2026-11-05). Maker’s page. Open ↗ (opens in a new tab)
Function Health FAQ (rechecked 2026-11-05). Maker’s page. Open ↗ (opens in a new tab)

Alternatives Other options to compare 3 options

Mito Health A 139-biomarker panel with Lp(a) for about $198 at member prices plus $9 a month, results reviewed by a clinician. It also sells supplements.
Quest Health Buy only the tests you want, such as Lp(a) at $45 plus a $6 fee, or the 85+ marker Elite profile for $399, on the same Quest labs. No membership, no supplement club.
Labcorp OnDemand Single tests at posted prices on Labcorp labs, with a no-sale promise for health data in its HIPAA notice.

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