Function Health sells a yearly membership: $365 for what it describes as 160+ lab tests, drawn at Quest. That is a low price per test and a lot of testing. Whether it is a good buy depends on how much of that testing you would have ordered anyway. We priced the common tests one at a time to find the break-even.
Updated: November 13, 2026 · Edited by LabTestInsight Editorial Team · Editorial standards
The Offer
Everything in this table is taken from Function’s own pages as published on November 13, 2026.
| Item | What Function states |
|---|---|
| Price | $365, charged annually; each added family member $340 a year |
| Tests | 160+ lab tests a year: 100+ at the annual visit, 60+ at a follow-up 3–6 months later |
| Where blood is drawn | Quest, 2,000+ locations in 48 states; a home visit is also offered |
| Not available | Rhode Island, Hawaii, Puerto Rico; under 18; currently pregnant. Function’s FAQ says testing in New York and New Jersey can cost more. |
| Visits | Many members finish in one visit; two if you have an active menstrual cycle or live in Arizona |
| Preparation | Fast for 8 hours |
| Review of results | Clinicians review every result; you get a clinician’s summary; a provider calls if a result is critical |
| Medical care | Terms say the service gives no medical advice and creates no doctor-patient relationship |
| Payment | HSA/FSA eligible; not an insurance product |
| Renewal | Renews automatically at the then-current price |
| Extras | Add-on tests at a member price (not listed publicly); MRI scans from $899 |
The included list covers the markers people most often pay extra for elsewhere. Function’s test page names ApoB, lipoprotein(a), hs-CRP, hemoglobin A1c, insulin, TSH, free T3, free T4, both thyroid antibodies, total and free testosterone, vitamin D and ferritin as included, along with the components of a standard blood count and metabolic panel.
The Math
HealthLabs prices are from our Lab Test Price Index, collected November 2, 2026. HealthLabs sends you to Quest and Labcorp draw sites and states it adds no fee for the lab visit.
| Test | Bought singly at HealthLabs | Function Health |
|---|---|---|
| Complete blood count (CBC) | $28 | Included |
| Comprehensive metabolic panel (CMP) | $39 | Included |
| Cholesterol / lipid panel | $29 | Included |
| Hemoglobin A1c | $29 | Included |
| TSH (thyroid) | $39 | Included |
| Vitamin D (25-hydroxy) | $59 | Included |
| Total testosterone | $49 | Included |
| Ferritin | $29 | Included |
| Vitamin B12 | $35 | Included |
| All nine | $336 | $365 a year, with 90+ further tests |
The break-even: the first six rows (CBC, CMP, lipid panel, A1c, TSH, vitamin D) total $223. Add testosterone, ferritin and B12 and you reach $336. Past roughly nine or ten single tests a year, Function’s $365 costs less than buying them one by one, and it includes a second draw. Below that, ordering only what you need is cheaper.
Two cautions on that arithmetic. A bundled panel is cheaper than the same tests bought singly, so a careful shopper can get a basic annual check for well under $223; our wellness panels guide and annual blood tests guide cover that. And more tests are not automatically more useful. A long panel on a healthy adult will turn up some out-of-range values that mean nothing, and each one can lead to a repeat test or a worried week.
Deep Dive
Decision Guide
For single tests, HealthLabs and Walk-In Lab both use Quest and Labcorp draw sites. The Price Index shows the lowest current price for 25 tests across seven services, and the free Blood Test Picker narrows down which test fits your question. See also our HealthLabs review and Quest vs Labcorp.
FAQ
Function Health's pricing page listed the membership at $365, charged annually, when we read it on November 13, 2026. Adding a family member is listed at $340 a year each. The subscription renews automatically at the then-current price, and add-on tests and imaging cost extra.
Function says the membership covers 160+ lab tests a year: 100+ at an annual visit and a follow-up of 60+ tests three to six months later. Blood is drawn at Quest locations. Function says clinicians review every result and that you receive a clinician's summary, and its terms state the service does not provide medical advice or create a doctor-patient relationship.
On price per test, yes, if you want that much testing. Nine common tests bought one at a time from HealthLabs came to $336 at our November 2, 2026 price check, close to Function's $365 for more than a hundred. It is poor value if you only need a few specific answers: a lipid panel plus hemoglobin A1c was $58, with no subscription.
Function's FAQ says it is offered at Quest labs across 48 states and is not yet available in Rhode Island, Hawaii or Puerto Rico. Members must be 18 or older, and it is not offered to people who are currently pregnant.
No. Function describes the membership as HSA/FSA eligible and its terms say the services are not insurance products.
You can decline renewal, and Function’s terms say the subscription otherwise renews automatically for another term at the then-current fee. The terms also say that deactivating your account does not automatically entitle you to a credit or refund. Read the current terms before you pay; ours is a summary of the version dated October 7, 2026.
Function Health is hard to beat on cost per test, and its included list is generous. The question to answer first is how many of those tests you would actually order. If the honest number is under ten, buy them singly and keep the difference.
Price Single Tests at HealthLabs →No membership · Quest + Labcorp draw sites · HSA/FSA accepted
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