Test smarter. Act sooner. Live longer.
Function gives you access to lab tests that standard care often skips—and the tools to act on your results. Know more and do more, before symptoms appear.





Function isn’t just how you test. It’s how you take action. Track daily trends from wearables and other health devices, store your full health history, get answers from Private AI Chat, and follow next steps built around your results and goals.
Millions of tests. Just the beginning.
We built Function to open up access to the kind of health knowledge most people never had.
Our members are now driving a new standard—taking control of their health, before symptoms start.
Your health can change fast. We keep up.
While standard healthcare only tests once a year, Function membership includes an Annual Test and a Mid-Year test 3-6 months later—to help you catch changes, track progress, and make smarter decisions before symptoms start.
We test what others miss.
Function membership includes 100+ biomarkers in your Annual Test and 60+ in your Mid-Year Test. This set of tests was rigorously selected by clinicians to flag risks that your average physical doesn’t.
Test with confidence.
All lab visits take place with trained phlebotomists, for cleaner samples and more reliable results. Your health information is protected with HIPAA-aligned systems and SOC 2 Type II compliance. That’s the Function standard.
Function’s Medical Intelligence Lab brings together clinicians, researchers, and AI for a science-backed way to own your health. By connecting your lab results, health history, and connected devices, we’re here to create clarity from complexity and help you focus on what matters most.


Advanced tests, member-exclusive pricing