$199/year · Insyght membership100+ biomarkers · Physician reviewed
Function Health runs 160+ tests a year for $365. Insyght Health runs a 100+ biomarker, physician reviewed draw, with a personalized plan and unlimited coaching, for $199. Here is the whole story.
*HSA/FSA eligibility varies by plan. Comparison based on each company's publicly available materials as of August 28, 2026, including Function Health's published membership pages and app listing. Details change; confirm current pricing and inclusions with each provider. State lab regulations can affect pricing for either provider, including in New York and New Jersey. Insyght Health is not affiliated with Function Health. Educational information, not medical advice.
On draw day, the two memberships look almost identical: 100+ biomarkers, a national lab network, physician review. The difference is what you pay for it. Function's higher price builds in a 60+ marker recheck six months later. With Insyght, retesting is there when your protocol calls for it, and the $166 you keep every year is money you can put toward actually moving your numbers.
Function Health is a strong, established product. Its built-in mid-year re-test and imaging add-ons like MRI and CT are genuine advantages if those are your priorities. We would rather you know that and choose with clear eyes. We just think a physician-reviewed panel read against optimal ranges, with a plan, unlimited coaching and prescriptions when appropriate, should not cost $365 a year.
If you want the same 100+ biomarker draw day, read deeper against optimal ranges instead of just lab-normal, with unlimited human support and room in the budget to act on what you find, Insyght Health is the clear value at $199 a year.
Most conditions whisper for a decade before they shout. Hear the whisper for 55 cents a day.
Function Health is a subscription lab testing service. For $365 a year as of August 2026, members get 160+ lab tests: 100+ biomarkers at an annual draw plus a 60+ marker mid-year re-test, with results and clinician insights in a dashboard.
Function Health costs $365 per year as of August 2026, reduced from its earlier $499 price. State lab rules can affect pricing in some states. For comparison, Insyght Health is $199 per year for a 100+ biomarker, physician reviewed draw.
Function Health runs 160+ lab tests across the year: 100+ biomarkers at the annual draw and a 60+ marker re-test at mid-year.
Function Health uses a national lab network with 2,000+ locations. Insyght Health also draws through 2,000+ Quest locations, with an at-home draw option available.
Yes, Function Health is generally HSA and FSA eligible, as is Insyght Health. Neither requires insurance.
Function Health provides clinician insights with results in its dashboard. Insyght Health has a physician review every panel against optimal ranges for your age and sex, with unlimited care team access included.
Insyght Health is the closest like-for-like alternative: the same 100+ biomarker draw day through Quest, physician reviewed against optimal ranges, with a personalized protocol and unlimited coaching, at $199 per year instead of $365.
$166 per year as of August 2026: Function Health is $365 per year and Insyght Health is $199 per year. Function includes a 60+ marker mid-year re-test in its price; Insyght offers retesting when your protocol calls for it.
Function Health is a strong, established product, especially if a built-in mid-year re-test and imaging add-ons matter to you. If you want the same 100+ biomarker draw day with physician review, a plan and coaching for $166 less per year, Insyght Health is the value pick.