Function Health

One mission — 100 healthy years. Function gives you access to a deeper view of your health through 160+ lab tests, advanced imaging, results tracking, and private AI chat — all in one place. The company offers its service as a membership that requires no insurance and can be paid with HSA or FSA funds.

Start with 100+ lab tests, then access 60+ follow-up tests 3–6 months later to see how key biomarkers change over time. That’s 5x more testing than the average physical. Explore your results across heart health, hormones, metabolic function, nutrients, inflammation, and more, with results tracked over time in one secure place. Test panels cover areas such as thyroid function, autoimmunity, and heavy metals and toxins. Members can also access the Galleri multi-cancer test. Clinicians review each result and flag issues, and members receive explanations, action items and a personalized protocol.

Go further with advanced imaging designed to look for early signs across key areas of the body. Members can add MRI and CT scans at any time. With 2,000+ locations, Function makes it easier to access extensive health data and follow how it changes over time. Blood draws take place at Quest locations across the US, or a licensed specialist can come to a member's home or office. Results can be shared with a personal doctor, and the company reports handling health data under SOC 2 Type II and HIPAA-aligned controls. Starting at $1/day.

The company's team works fully remotely. The physicians and researchers associated with Function include faculty and clinical leaders from institutions such as Harvard, Stanford, Columbia and Memorial Sloan Kettering Cancer Center.