Function Health Function Membership vs Marek Health Guided Optimization (pay-per-service)
Specs, prices, editor verdict, and who should buy which - compared side-by-side.
Function Health Function Membership (premium, $365/yr) vs Marek Health Guided Optimization (pay-per-service) (premium, $250–$2,000/test) - different tools for different jobs (see the per-product details below).
Compared on 1 shared spec · cross-category comparison (ai software vs diagnostic).
These are close picks. Both score in the same range. The right call depends on buyer profile - read the per-buyer recommendations below.
Side-by-side specs
| Spec | Function Health Function Membership | Marek Health Guided Optimization (pay-per-service) |
|---|---|---|
| price | $365/yr | $250–$2,000/test |
| biomarkers | 160+ lab tests | 80+ markers in comprehensive panels |
Function Health Function Membership also publishes: frequency, clinicianReview, subscription, delivery
Marek Health Guided Optimization (pay-per-service) also publishes: serviceType, deliveryModel, membership, initialPanel, medications, consultModel, audience, monitoringCadence
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 Health Function Membership or the Marek Health Guided Optimization (pay-per-service)?
They are closely matched on our scoring, so the right pick comes down to your priorities. The verdict and spec table above compare them on price, features, and who each one suits.
How much do they cost?
Function Health Function Membership: $365. Marek Health Guided Optimization (pay-per-service): $250 to $2,000. Prices are verified against the manufacturer; check the live links for current pricing.
Who should buy which one?
Function Health 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."