Function Health Function Membership vs SiPhox Health At-Home Biomarker Test
Specs, prices, editor verdict, and who should buy which - compared side-by-side.
Function Health Function Membership (premium, $499/yr) vs SiPhox Health At-Home Biomarker Test (entry, $99–$189) - 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 | SiPhox Health At-Home Biomarker Test |
|---|---|---|
| price | $499/yr | $99–$189 |
| biomarkers | 110+ | Up to 60 (heart, metabolic, thyroid, hormones, inflammation, kidney, liver, nutrition) |
Function Health Function Membership also publishes: frequency, clinicianReview, subscription, delivery
SiPhox Health At-Home Biomarker Test also publishes: testType, turnaround, insights, pricing, hsaFsa, firstKitShipping
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).
Buyers who want frequent, low-friction biomarker tracking without lab visits or needles, especially anyone testing quarterly to watch trends rather than once a year. HSA/FSA users get a meaningful pre-tax discount.
You want the single broadest one-time panel (Function 110+ or Mito 100+ markers with physician review), or you need an active prescribing relationship for hormones or GLP-1s - this is testing and insight only.