Build health from the inside out with Function—the first platform offering an all-in-one set of 100+ advanced lab tests that cover your entire body, from heart and hormones to metabolism, thyroid, nutrients, toxins, and more. With 5x more tests than the average physical and twice-yearly testing, you can monitor early indicators of disease and pinpoint areas for optimization. Get tailored insights on food and supplements backed by decades of research, along with a detailed clinician summary after each time you test. It’s your evolving health strategy for better performance and longevity.
Pricing in NY and NJ: Due to state regulations, an additional lab testing fee charge applies in NY and NJ. This will be collected during your lab visit via credit or debit card.

Testing is easy
Explained by top doctors and researchers
No insurance needed
Transparent pricing
Heart testing beyond cholesterol
Autoimmunity testing
Hormones & fertility testing
Nutrient & electrolyte testing
Access to cancer testing
Standard checkup
As someone navigating an autoimmune condition, it's been such a relief to finally have a clear, visual way to track what’s going on in my body—and actually understand it.
Early detection has given me this amazing gift of extra years, probably extra decades, with my family.
After 10 years of dealing with a health issue, 5 years of trying to get doctors to run more in-depth tests, Function finally helped me uncover the root cause.
Real people. Real results.



