Function Membership vs SiPhox Health At-Home Biomarker Test
Specs, prices, editor verdict, and who should buy which, compared side by side.
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Function Membership (premium, $365/yr) vs SiPhox Health At-Home Biomarker Test (entry, $124). 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 SiPhox Health At-Home Biomarker Test starts at $124 and the Function Membership at $365/yr. The per-buyer recommendations below say who each one suits.
Side-by-side specs
| Spec | Function Membership | SiPhox Health At-Home Biomarker Test |
|---|---|---|
| price | $365/yr | $124 |
| biomarkers | 160+ lab tests | Up to 60 (heart, metabolic, thyroid, hormones, inflammation, kidney, liver, nutrition) |
Function Membership also publishes: frequency, clinician review, subscription, delivery
SiPhox Health At-Home Biomarker Test also publishes: test type, turnaround, insights, pricing, HSA/FSA, first kit shipping
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 160+ or Mito 117 to 178 markers with clinician review), or you need an active prescribing relationship for hormones or GLP-1s - this is testing and insight only.
Go deeper
Frequently asked
Which is better, the Function Membership or the SiPhox Health At-Home Biomarker Test?
We have not scored these two head to head, so this page does not name a winner. The SiPhox Health At-Home Biomarker Test starts at $124 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. SiPhox Health At-Home Biomarker Test: $124. 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. SiPhox Health At-Home Biomarker Test: 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.
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