How it works
The first membership for your lifelong health.
Instantly schedule your 100+ lab tests at Quest Diagnostics with 2000+ locations
Results include insights derived from top doctors and 1000s of hours of research, your detailed written Clinician’s Summary, and phone calls for any critical results.
Test every few months to watch your health progress over time.



Testing is easy
Testing is easy



Results over time
Results over time
All results tracked in one secure place.
Know your health today. Monitor changes over time.
Results over time
Results over time
All results tracked in one secure place.
Know your health today. Monitor changes over time.
100+ lab tests for your whole body
Tracked over your lifetime
Monitor for early indicators of 1000's of diseases.
100+ lab tests for your whole body
Tracked over your lifetime
Monitor for early indicators of 1000's of diseases.
100+ lab tests
100+ lab tests
Doctors across specialties carefully selected each test to help give you the broadest and deepest understanding of your ever-changing health. The following tests are included with your $499 Function annual membership unless otherwise noted.

The clinical team highlights larger patterns and flags that could impact your health. This detailed attention ensures you're not just collecting data, but also gaining actionable insights to take charge of your health.
Test results with Clinician's Summary
Test results with Clinician's Summary
Receive a comprehensive summary written by our Clinical Team, who review each biomarker to present a detailed perspective on your health. A clinician will call you promptly if any urgent results arise so you are informed and empowered to act.
Common questions
Common questions
What does a Function membership include?
For $499 per year, a Function membership gives you:
- 100+ lab tests at the start of each year—no hidden costs, no insurance required.
- 60+ follow-up tests at 3–6 months to track changes.
- Insights from top doctors based on your results.
- A written clinician summary to help you understand your data.
- Access to re-test at transparent prices when needed.
- Option to purchase additional tests, including Lyme, STDs, and allergies.
- Access to groundbreaking tests, like the Galleri Multi-Cancer Early Detection test.
Function is for anyone 18 and older. The sooner you establish a baseline, the better—you’ll see where you stand today and track changes over time. Understanding your body’s trends gives you the power to make informed decisions about your future.
Function is 100% insurance-free. No deductibles. No co-pays. We are committed to transparent prices and you knowing exactly what you pay for. Function does not accept insurance, however it is FSA/HSA eligible. Function provides you with an itemized receipt for submitting to an FSA/HSA plan.