VIALSuperpower vs Function Health
An independent comparison of what each membership costs, what it tests and where blood is drawn. Checked October 29, 2026
Superpower and Function Health both sell a yearly blood-testing membership with clinician review of the results. Superpower lists $199 a year for one comprehensive blood test with "100+ biomarkers" and a free follow-up test for new members. Function Health lists $365 a year for "160+ lab tests" run twice a year. That makes Superpower's advertised price $166 lower, and Function Health's advertised test count higher. Both say add-on tests cost extra, and Superpower doesn't price any of them.
Both name Quest as a place to draw blood, and we found no FDA, OIG or DEA actions for either. They differ on extras. Function Health lists MRI and CT scans with prices, from $349. Superpower says it prescribes medication, including compounded hormones and peptides, through three named pharmacies. We found no prescribing at Function Health. In our scoring, Function Health has 81 and Superpower has 70.
Membership and tests
| Function Health | Superpower | |
|---|---|---|
| Membership | $365 a year, renews automatically at their then-current price | $199 a year, renews automatically at their then-current non-promotional rate; they say pricing may vary in New York and New Jersey |
| Tests | "160+ lab tests" twice a year: 100+ at the first visit, 60+ at a follow-up 3 to 6 months later | One comprehensive test a year with "100+ biomarkers"; free follow-up test for new members, which they say is normally $99; extra full panels cost extra |
| Where blood is drawn | 2,000+ Quest locations, or an at-home specialist; no home-visit fee found | 2,000+ Quest locations, or a mobile phlebotomist for an additional cost they don't price; their agreement also names LabCorp |
| Extras | Personalized protocol; MRI $999 ($899 members), heart CT $349, lungs CT $399, through Ezra; Galleri $624 on one campaign page | Biological age, 17 health scores, AI assistant; prescriptions, peptides and supplements at member pricing; add-on tests listed without prices |
| States | 48, not Rhode Island, Hawaii or Puerto Rico | 41 and D.C. in their FAQ, which excludes nine states; their home page lists a different set |
| Refund | Full refund only if you cancel within 48 hours and before a specimen is collected | Their agreement allows a refund of the membership fee until 7 days after results or 45 days after you start, once, not on renewals; their FAQ says they don't offer refunds |
| Checked | October 29, 2026 | October 29, 2026 |
Who reviews your results?
Function Health says clinicians review every result and flag issues. Their About page lists Mark Hyman, M.D. as chief medical officer and three other physicians, but doesn't say which of them review members' results. Superpower's FAQ says their providers include licensed physicians, nurse practitioners and pharmacists. A page on their site names a four-person medical advisory board, and their location pages name Dr. Anant Vinjamoori as Chief Longevity Officer. We couldn't find the medical group that employs the clinicians at either company, or a list of who reviews results.
Where is blood drawn?
Function Health says testing happens at more than 2,000 Quest locations, or at home or the office with a licensed specialist. Their FAQ says testing costs more in New York and New Jersey and gives no amount. Their MRI and CT scans are booked through Ezra. Superpower names Quest on its home page, and its membership agreement says testing is done by "LabCorp, Quest Diagnostics, or another third-party laboratory", without saying which test uses which. They say an at-home draw costs extra and don't give a price. One Trustpilot reviewer wrote that it was $150.
Federal actions
We found no FDA, OIG or DEA actions for Function Health in records checked on October 29, 2026.
We found no FDA, OIG or DEA actions for Superpower in records checked on October 29, 2026.
Patient reviews
On Trustpilot, Function Health averages 4.5 from 3,094 reviews and Superpower averages 4.4 from 340. The one-star reviews we read at Function Health, 20 of them, mostly concern reaching a person, cancelled or missed blood draws, and renewals and refunds. Of the 24 negative reviews we read at Superpower, about 12 concern reaching a person instead of an automated assistant and about 7 concern add-on tests or charges beyond the $199. The Better Business Bureau gives Function Health a B minus, not accredited, with 72 complaints in three years. We found no Better Business Bureau listing for Superpower.
Frequently asked questions
Is Superpower or Function Health cheaper?
Superpower lists $199 a year and Function Health lists $365, a difference of $166. Function Health advertises 160+ tests and Superpower 100+ biomarkers, so the counts aren't measured the same way. Both charge extra for add-ons, and Superpower doesn't publish add-on prices.
Do Superpower and Function Health use Quest?
Both name Quest and say it has more than 2,000 locations. Superpower's membership agreement also names LabCorp and "another third-party laboratory". Both offer a home draw, and Superpower says it costs extra.
Do they prescribe medication?
Superpower says they offer prescriptions, including compounded hormones and peptides, and names Strive Pharmacy, Belmar Pharmacy and Progress Pharmacy. We found no prescribing at Function Health.
Can I get a refund?
Function Health's terms give a full refund if you cancel within 48 hours of buying and before a specimen is collected, and renewals aren't refundable. Superpower's agreement allows a refund of the membership fee until 7 days after your first results or 45 days after you start, once and not on renewals, but their FAQ says they don't offer refunds. Ask them which applies before you pay.
Function Health
Comparison based on public federal and state records including NPI Registry, FDA enforcement database, and PCAB accreditation directory. Updated weekly. Not a medical endorsement.
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