Key takeaway:
Superpower ($199/year) and Function Health ($365/year) are both annual, membership-based biomarker testing services. Superpower runs 100+ health metrics in one blood draw, with a personalized protocol, on-demand care, and a supplement and prescription marketplace. Function Health tests 100+ biomarkers at an annual test, then re-tests 60+ of them mid-year to track changes, with clinician notes and biological-age tracking.
Other companies you should compare
Superpower vs Function Health, compared
Superpower and Function Health are both annual, membership-based biomarker testing services. Superpower costs $199 a year and includes 100+ health metrics from a single blood draw, plus a personalized action plan and on-demand care-team access. A supplement and prescription marketplace is built in.
Function Health costs $365 a year and tests 100+ biomarkers at its annual test, then re-tests 60+ of them mid-year to track changes (which it markets as "160+ lab tests" a year). You get clinician notes and biological-age tracking, plus supplement recommendations, but no member-priced supplement marketplace or prescription access.
What is a biomarker testing company?
A biomarker testing company offers blood-based testing on a membership basis, measuring your biomarkers at set intervals. Biomarkers are measurable signals in your blood, things like cholesterol, blood sugar, and hormones.
Some platforms stop at data and a report. Others turn those results into a plan you can actually follow. Two questions separate them: how much do they measure, and what do they help you do next?
Superpower and Function Health answer those questions differently. One pairs testing with built-in action; the other emphasizes repeat testing to track trends.
How Superpower works
Superpower follows a simple path:
- Join for $199 a year.
- Give one blood draw at a lab, or at home for an added fee.
- Receive 100+ health metrics in your dashboard.
- Get a personalized action plan.
- Message your care team on demand.
Testing reaches 2,000+ partner locations across 40+ states. You can also shop a supplement marketplace with member-exclusive pricing, and prescription and peptide access is available in the marketplace (medications priced separately).
A biological-age score is built into every Superpower membership. An optional OrganAge add-on goes deeper, breaking your aging into nine organ-level age scores across systems like metabolism, inflammation, liver, and kidney health. Results arrive in 5-10 business days.
How Function Health works
Function Health uses a two-test model. Its annual test covers 100+ biomarkers, and a mid-year test then re-tests 60+ of them to see what's changed. Function markets the combined count as "160+ lab tests," though the mid-year round repeats markers rather than adding new ones.
That mid-year re-test is fixed at 60+ markers and built into the $365 price, whether or not you want one. Clinicians review and flag your results, and personalized protocols are offered in early access. Function also tracks a biological-age measure.
Testing happens at partner labs, or via a concierge at-home draw in select areas. Following its SuppCo acquisition, Function now matches your results to recommended supplements, but there's no member-priced supplement marketplace and no prescription access. The model favors longitudinal tracking over a built-in action loop.
Biomarkers and what you measure
This is the most scrutinized comparison point, so precision matters. Both companies run 100+ biomarkers, so the distinct-marker count is effectively the same.
Both also cover the markers that matter most, including ApoB, Lp(a), and HbA1c. What differs is how each platform counts and reports.
- Headline count — Superpower: 100+ health metrics*. Function Health: 100+ biomarkers, marketed as "160+ lab tests."**
- Counted from — Superpower: one blood draw. Function Health: annual test plus a 60+ mid-year re-test of the same markers.
- Derived ratios — Superpower: included. Function Health: direct lab tests only.
*Superpower's 100+ combines direct lab measurements with calculated ratios like LMR and Ferritin:Albumin.
**Function's "160+" counts its 100+ annual biomarkers plus a 60+ mid-year re-test of the same markers, not 160 distinct biomarkers. On distinct biomarkers, both platforms land at 100+.
Care and prescriptions
This is where the two diverge most. Superpower includes on-demand access to a care team you can message about your results, and it adds what Function doesn't: prescription and peptide access covering GLP-1, TRT, and clinically appropriate peptides (medications priced separately)*, plus a curated supplement marketplace with member-exclusive pricing.
Function Health also offers on-demand support: its clinicians review and flag your results, and members can chat with an AI assistant and its care team. What it doesn't include is prescription access or a member-priced supplement marketplace, so Function points you elsewhere to act on parts of your data, while Superpower keeps testing and action under one roof. That loop is the core difference.
*Compounded medications are not FDA-approved and are not evaluated by the FDA for safety, effectiveness, or quality. A patient-specific prescription is required, and Rx products are prescribed only when clinically appropriate. Rx products are not available in all states. See informed consent.
Pricing and value
Superpower costs $199 a year, while Function Health costs $365 for one year. Function's price covers two tests, but the second is a fixed 60+ re-test of the same markers, not your choice.
Superpower keeps re-testing optional: when you want one, a full 100+ re-test is a $179 add-on, on the markers you choose. That brings a re-test year to $378, only a little more than Function's $365 base, and you pay it only if you want it.
Superpower's $199 membership also bundles far more than data: a protocol, a supplement marketplace, and prescription access. Both are HSA/FSA eligible, so pre-tax dollars can cover either one.
Best fit for you
Superpower is best for:
- People who want to spend less.
- People who want a protocol and care, not just data.
- People who prefer one blood draw over two.
- People who want supplement and prescription access in one place.
- People who value fast results.
Function Health is best for:
- People who want two testing rounds a year for trend tracking.
- People who want a longer-established, dedicated biological-age product.
- People comfortable acting on their results elsewhere.
- Data purists who value frequent re-testing.
The bottom line
Neither company is short on data. Function Health and Superpower both test broadly and both track biological age, so the panel isn't where they part ways. Function's model is testing and tracking: two rounds a year and a large marketed panel to watch your numbers move over time.
The difference is what turns those numbers into action. Superpower builds your 100+ health metrics into a personalized protocol and pairs it with on-demand care and a supplement and prescription marketplace, so acting on a flagged result happens in the same place you found it. And it's one flat $199 a year, against Function's $365.
Data you don't act on is just a spreadsheet. Superpower is built end to end to prevent that, and in its member data 60% say it caught something earlier care had missed or overlooked. Two tests a year is a cadence; a plan you can follow is the point.
Frequently asked questions
References
- Function Health. (2026). Function is now $365/year. Function Health.
- Function Health. (2026). Biological age. Function Health.
- Function Health. (2026). SuppCo. Function Health.
- Function Health. (2026). Contact us. Function Health.
- McColgan, C. (2026, January 1). Function Health vs Superpower: Which lab membership is best? Heal Nourish Grow.
- Gershen, J. (2026, January 22). Function Health vs Superpower review: Which is better in 2026? Well+Good Travel.
















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