Function is redefining what it means to take control of your health, and as an Erewhon member, you can join for $399 for your first year (normally $499). With this yearly membership, get access to the results of 160+ advanced lab tests, advanced imaging (add-on fees apply), and top doctor insights, all in one app.
Function empowers you to detect early signs of thousands of diseases, track your biomarkers over time, and uncover personalized recommendations based on insights from top doctors. Each test includes a detailed written report from a clinician, guiding you on food, lifestyle, and supplement strategies tailored to your results.

By top doctors and 1000s of hours of research
Personalized Protocol
Upload past results
No insurance needed
Hormones & fertility testing
Heavy metal & toxin testing
Metabolic & pancreatic testing
Heart testing beyond cholesterol
Nutrient/electrolyte testing
Autoimmunity testing
Thyroid testing
Access to advanced MRI & CT
Access to GRAIL cancer test
Access to Alzheimers & brain testing
Access to mold reactivity testing
Standard checkup
This is the most comprehensive lab testing I have ever had. I am thrilled to know more about my health and how to improve it.
Best money I have spent on healthcare.
Function blows my mind. The experience, price, and clinician notes are all phenomenal.



