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76
Very Good
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Function Health

Direct-to-consumer lab testing membership offering 160+ biomarkers twice yearly through Quest Diagnostics, with clinician-reviewed results and action plans.

Austin, TXFounded 2021200-500 employeesReviewed Sep 19, 2026Prices checked Oct 9, 2026
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Our Verdict

Function Health scores 76.3/100 in our independent evaluation — very good overall, standing out most for experience and value. Plans start at $30.42/mo.

Primary Care

What we like

+Trustpilot rating of 4.5/5 across 2,960 reviews, among the strongest in the diagnostics-membership category
+160+ biomarkers tested twice yearly at 2,000+ Quest locations nationwide, far exceeding a standard annual physical (roughly 20-30 markers)
+Flat, transparent annual pricing ($365/year) visible before any intake or consult

What to watch

−Reaching live customer support can be slow, per patient reports
−Results depend on Quest blood-draw logistics; a subset of patients report an inconsistent draw experience
−Membership covers testing and clinician-reviewed insights but not ongoing prescribing or treatment for abnormal results

Full Review

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: Sep 19, 2026 · Prices checked: Oct 9, 2026

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.

TreatmentCategoryPrice/moIncludesNotes
Annual Lab MembershipPrimary Care$30.42
● Consults● Lab work○ Shipping
$365 billed annually
Subscription required
At-Home Blood Draw Add-OnPrimary Care$49–$99
○ Consults● Lab work○ Shipping
No subscription needed

Score Breakdown

78
Trust & Safety (30%)
80
Value (25%)
82
Experience (20%)
60
Product Range (15%)
75
Reputation (10%)
Trust & Safety78/100
Value80/100
Experience82/100
Product Range60/100
Reputation75/100

How Function Health Stacks Up

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Function Health — Frequently Asked Questions

Is Function Health legit?

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We rate Function Health's trust & safety at 78/100 (very good), based on FDA compliance, licensing, and pricing transparency. Its overall score across all five of our scoring dimensions is 76.3/100 — see the full breakdown above.

How much does Function Health cost?

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Function Health's plans start at $30.42/mo. Exact pricing varies by treatment — see the pricing table above for a breakdown by product. Prices were last verified 2026-09-19.

Does Function Health require a subscription?

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It depends on the plan. Some Function Health treatments require an ongoing subscription and some don't — check the "Notes" column in the pricing table above.

What does Function Health treat?

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Function Health offers treatment in: Primary Care.

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