Function Health
Direct-to-consumer lab testing membership offering 160+ biomarkers twice yearly through Quest Diagnostics, with clinician-reviewed results and action plans.
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Function Health is a membership-based diagnostics service, testing 160+ lab biomarkers twice per year through Quest Diagnostics locations nationwide for a flat $365 annual fee. Members receive clinician-reviewed results, personalized action plans, and the option to add specialty tests such as MRI, CT, or the Galleri multi-cancer screening. The company has grown to over 100,000 members and was valued at roughly $2.5 billion as of late 2025, with a Trustpilot rating of 4.5 across nearly 3,000 reviews. Function Health does not prescribe medication — it is a diagnostics and insights platform, so patients with abnormal results still need a separate primary-care or specialist relationship to act on them.
Last researched: 2026-09-19
Pricing
Prices shown are based on our most recent research and may not reflect current pricing. Telehealth providers update their pricing frequently. Always verify pricing directly with the provider before purchasing.
| Treatment | Category | Price/mo | Includes | Notes |
|---|---|---|---|---|
| Annual Lab Membership | Primary Care | $365 | ● Consults● Lab work○ Shipping | Subscription required |
| At-Home Blood Draw Add-On | Primary Care | $49–$99 | ○ Consults● Lab work○ Shipping | No subscription needed |