Mito Health vs Function Health 2026: Which Membership Wins for Longevity Buyers
Mito Health and Function Health are priced near-identically ($349 vs $365/yr), so it comes down to features: Mito's past-lab upload and biological age vs Function's wider panel and two draws. Here's the actual decision framework.
Function Health became the breakout longevity diagnostic platform of 2024-2025 - productizing executive-physical biomarker tracking into a $365/year membership and crossing 100,000+ members within 18 months. The brand created the category. In 2026, Mito Health entered as the direct alternative at $349/year, built around past-lab upload and a biological-age readout.
The honest answer on which to pick depends on what you actually want from a biomarker membership.
The category framing
Both Mito Health and Function Health are membership-based comprehensive biomarker platforms. The model: 1. Pay annual membership fee ($349-365) 2. Two lab draws per year (Quest or LabCorp partner) 3. Receive 100+ biomarker results 4. AI-driven insights highlight biggest deltas + abnormal markers 5. Physician review on flagged results 6. Year-over-year tracking dashboard
This is a meaningfully different product than: - One-time lab panels (InsideTracker, Marek Health single-visit) - no ongoing membership, no longitudinal tracking - Concierge medicine (Lifeforce, Forward) - ongoing physician relationship, much higher cost ($2,000-5,000/yr) - Direct lab orders (Ulta Lab Tests, Walk-In Lab) - buy individual tests à la carte, no insights or interpretation
The membership category fits buyers who want consistent year-over-year biomarker tracking with AI-driven insights, without the cost of full concierge medicine.
Spec comparison
| Spec | Mito Health | Function Health |
|---|---|---|
| Annual price | $349 | $365 |
| Biomarkers per draw | 100+ | 160+ |
| Draws per year | 2 | 2 |
| AI insights | Yes | Yes |
| Physician review | Yes (US-licensed MDs) | Yes (US-licensed MDs) |
| Past lab integration | Yes (upload PDFs from prior tests) | Yes (upload PDFs) |
| Genetics add-on | Available (additional cost) | Not currently |
| Microbiome add-on | Available (additional cost) | Not currently |
| Physician consult | Included | Included (limited) |
| Members | 50K+ | 100K+ |
| Founded | 2023 | 2022 |
Where Function Health wins
- Brand momentum + community: Function has 100K+ active members and the strongest brand presence in the longevity-membership category. Andrew Huberman's public endorsement drove ~80% of early-2024 growth. For buyers who value brand presence and category-defining positioning, Function is the safer choice.
- Operational maturity: Function had an 18-month head start. Lab partner integrations, member dashboard, and result-delivery cadence are more refined.
- Network effects: Larger member base means richer cohort comparison data ("how does my ApoB compare to other 35-year-old men in my fitness percentile?"). This is a real signal advantage.
- Single-product focus: Function does one thing well - comprehensive biomarker membership. No add-on upsells distract from the core experience.
- Wider panel + two included draws: Function runs a broader 160+ marker panel and includes two draws a year vs Mito Core's single annual draw, the deeper one-time snapshot.
Where Mito Health wins
- Past-lab upload from day one: Mito lets you upload bloodwork your PCP or a prior platform already ran, so the AI insights work immediately. Function only tracks data drawn through its own service, which means your first year is partly educational rather than fully diagnostic. This is Mito's clearest functional edge.
- Biological-age readout: Mito surfaces a biological-age number alongside the panel, a longevity-native metric Function does not headline.
- Tiered structure + add-ons: Mito runs three tiers (Core $349, Pro $699, Ultra $1,899) and offers genetics + gut-microbiome add-ons, so you can layer in advanced and cancer screening as you go. Function doesn't currently offer these.
- Price is basically a wash: at $349 vs $365 the annual cost is near-identical, so this is a features decision, not a price one.
Where neither one is the right answer
- You need clinician-led hormone optimization (TRT, peptides, GLP-1) → Marek Health or Lifeforce is the right tier - these include active prescribing relationships, not just lab insights
- You only want a one-time baseline → InsideTracker at $300 single-visit is meaningfully cheaper and better for spot-baselines
- You want full whole-body imaging in addition to bloodwork → Prenuvo (whole-body MRI) or Ezra cover that gap
- You're already getting comprehensive labs through your existing physician → ask for a copy of the panel and use Mito or Function's "upload past labs" feature for $0 - you don't need either membership
The decision framework
Pick Function Health if: - You want the wider panel (160+ markers) and two included draws a year - Brand presence and the largest member cohort for comparison data matter to you - You value the most refined product experience after 18+ months of iteration - You don't have past labs to upload (Function can't use them anyway)
Pick Mito Health if: - You have past bloodwork to upload and want day-one insights - A biological-age readout matters to you - You want add-on flexibility (genetics, gut microbiome) or a tier path up to advanced and cancer screening - The near-identical price ($349 vs $365) makes this a features call, and Mito's features fit you
Pick InsideTracker if: - This is your first comprehensive lab panel and you want to test the experience without annual commitment - You want a single $300 panel rather than a $349-365/year recurring bill
Pick Marek Health or Lifeforce if: - You need active hormone optimization, not just biomarker tracking
The longevity-stack frame
For Lifespan Vault's longevity-focused readership, biomarker membership is foundational infrastructure. Without baseline labs and longitudinal tracking, the rest of the longevity stack (supplements, hardware, protocols) is operating on guesses. The cost of either Mito Health or Function Health is genuinely small relative to a $5K-50K longevity hardware budget.
Pick the membership and use it for 24+ months. The longitudinal data is what makes it valuable - single-year membership gives you a baseline; year-over-year is what tells you whether your stack is working.
For full membership-tier coverage, see our Best Diagnostic Platform 2026 guide. For the broader stack architecture, see our First $3,000 Longevity Stack build.
- Ryan, Founder
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