Function Membership vs Marek Health Guided Optimization (pay-per-service)
Specs, prices, editor verdict, and who should buy which, compared side by side.
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Function Membership (premium, $365/yr) vs Marek Health Guided Optimization (pay-per-service) (premium, $250 to $1,950/test). Different tools for different jobs (see the per-product details below).
Compared on 1 shared spec · cross-category comparison (ai software vs diagnostic).
We have not scored these two head to head, so this page does not name a winner. The Marek Health Guided Optimization (pay-per-service) starts at $250/test and the Function Membership at $365/yr. The per-buyer recommendations below say who each one suits.
Side-by-side specs
| Spec | Function Membership | Marek Health Guided Optimization (pay-per-service) |
|---|---|---|
| price | $365/yr | $250 to $1,950/test |
| biomarkers | 160+ lab tests | 80+ markers in comprehensive panels |
Function Membership also publishes: frequency, clinician review, subscription, delivery
Marek Health Guided Optimization (pay-per-service) also publishes: service type, delivery model, membership, initial panel, medications, consult model, audience, monitoring cadence
Who should buy which
Anyone running peptides, optimizing hormones, on a longevity protocol, or just wanting twice-yearly comprehensive labs at a fixed price.
You already get comprehensive labs through your concierge clinic, or you only want the cheapest single-panel test (go InsideTracker).
Experienced TRT/HRT users running multi-medication protocols, biomarker-literate buyers who want clinically aggressive guidance, and the intersection of "performance optimization" and "wants real bloodwork supervision."
You're TRT-curious for the first time (start with Hone), you can't budget $300+/mo all-in, or you want a higher-touch in-clinic experience (Defy Medical or Cenegenics).
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Frequently asked
Which is better, the Function Membership or the Marek Health Guided Optimization (pay-per-service)?
We have not scored these two head to head, so this page does not name a winner. The Marek Health Guided Optimization (pay-per-service) starts at $250/test and the Function Membership at $365/yr. The per-buyer recommendations below say who each one suits.
How much do they cost?
Function Membership: $365. Marek Health Guided Optimization (pay-per-service): $250 to $1,950. Prices are verified against the manufacturer; check the live links for current pricing.
Who should buy which one?
Function Membership: Anyone running peptides, optimizing hormones, on a longevity protocol, or just wanting twice-yearly comprehensive labs at a fixed price. Marek Health Guided Optimization (pay-per-service): Experienced TRT/HRT users running multi-medication protocols, biomarker-literate buyers who want clinically aggressive guidance, and the intersection of "performance optimization" and "wants real bloodwork supervision."
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