Get the proof that your training is working

Routine cholesterol tests haven’t changed since the 1950s—but the science has.

Stop settling for “normal.”

“Normal” labs can detect disease, but don’t necessarily show progress. Function tests 100+ biomarkers across metabolism, hormones, and more, giving you proof of improvement and early warnings before setbacks. Because for high-performers, “normal” isn’t the goal. “Better” is.

  • Beyond the basics: Your wearables and routine labs only show part of the picture. Function helps reveal what’s really changing inside your body with 100+ advanced health insights.
  • Turn effort into evidence: Training, supplements, recovery protocols—you’re already doing the work. Now get the data that shows it’s making an impact.
  • Track whole-body wins: See patterns across your metabolism, hormones, and inflammation, so you can measure progress like a true scoreboard.

Testing is easy

01

100+ lab tests

Schedule at 2k+ Quest Diagnostics locations
02

Results explained

By top doctors and 1000s of hours of research

03

Follow your protocol

 Take action. Test again.

What could cost you $15,000 is $499

Your health shouldn’t depend on insurance.
HSA/FSA Eligible

Function membership

$42

/day
Charged annually at $499
Join Function
160+ lab tests
Testing 2x/year and on-demand
Insights from top doctors and researchers
All-in-one for your whole body
Tracked in one secure place
Clinicians review every result and flag issues
Personalized protocol for instant action
Add advanced MRI and CT scans anytime
No insurance, transparent pricing
Join Function

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 UI, UX, price and clinician notes are all phenomenal.