Test twice a year for just $499 annually
Function members test more of the biomarkers that matter most—without jumping through insurance hoops.

What could cost you $15,000 is $499
Function membership
$42
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.

Not your average checkup
No insurance needed
Transparent pricing
Heart testing beyond cholesterol
Autoimmunity testing
Hormones & fertility testing
Nutrient & electrolyte testing
Access to cancer testing
Standard checkup
The gold standard in health improvement
The gold standard in health improvement
2,000+ lab test locations across the U.S.
40+ million results delivered to Function members
The real question isn't whether you can afford Function — it's whether you can afford not to
The real question isn't whether you can afford Function — it's whether you can afford not to
Many illnesses and leading causes of death can be prevented or delayed with lifestyle changes.
- can reduce the risk of cardiovascular disease by over 80%
 - can reduce the risk of diabetes by over 90%
 - are attributed to 40% of dementia cases
 - are attributed to 42% of cancer cases
 
Illness is expensive. Even with insurance coverage, co-pays and non-covered services add up.
- Treating diabetes can cost $12,022 per year out of pocket
 - Heart failure costs an average of $4,423 per year out of pocket
 - The average hospital stay in the U.S. costs $2,529 per day out of pocket
 
Testing is easy
Testing is easy
Schedule lab tests
Get 100+ results
Backed by thousands of hours of research
