Function Health Function Membership vs Marek Health Guided Optimization Membership
Specs, prices, editor verdict, and who should buy which — compared side-by-side.
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 Membership |
|---|---|---|
| price | $499/yr | $99–$399/mo |
| biomarkers | 110+ | 80+ markers in comprehensive panels |
Function Health Function Membership also publishes: frequency, clinicianReview, subscription, delivery
Marek Health Guided Optimization Membership 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).