What’s included
Get a continuous, deep-level picture of your health.
The 100+ test list.
The 100+ test list.
Doctors across specialties carefully selected each test below to provide you with the broadest and deepest understanding of your ever-changing health. The following tests are included with your $499 Function annual membership.*
New add-on tests. More insights.
New add-on tests. More insights.
We’ve more than doubled the tests within your reach. Now test even deeper—PFAS, BPA, extended heavy metals, and more. Because modern health risks need modern testing.
Access to Function's platform
Access to Function's platform
One secure home for all of your lab test results, Clinician’s Summaries, and insights derived from top doctors and 1000s of hours of research.
A comprehensive summary of your results from a clinician, along with prompt calls for any urgent results.
Make impactful changes and find out how your results change over time.
Monitor for early indicators of thousands of diseases through advanced tests not typically covered by insurance.
Your Stack developed
with top doctors.
Your Stack developed
with top doctors.
Your Stack turns results into action items. Discover immediate steps to best support your unique health, and witness the impact on your next set of results. Developed with top doctors and 1000s of hours of deep research.
100+ lab tests
Whole body testing
Tracked over time
Doctors may come and go.
Function is designed for your lifetime.
Doctors may come and go.
Function is designed for your lifetime.
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.
A team of licensed clinicians across multiple specialties—including Function’s co-founder and Chief Medical Officer, Dr. Mark Hyman—curated these tests based on the latest scientific research. The focus? Root cause medicine, early disease detection, and long-term health impact.
Every test is chosen to deliver actionable insights, giving you the data you need to take charge of your health before problems arise.
Function is HSA/FSA eligible. Members can expect to receive an itemized receipt via email within one business day of scheduling lab testing. The receipt will include a cost breakdown, date of payment and service, and the ordering clinician. If you have not received an itemized receipt after one business day of scheduling your lab visits, please email hello@functionhealth.com, and we will ensure one is sent to you. Function does not provide a Tax ID number, medical diagnosis, or diagnostic codes. Reimbursement is not guaranteed. Please contact your FSA/HSA provider in advance to confirm the terms of reimbursement.
Traditional healthcare typically requires a specific symptom or condition before approving comprehensive testing. Function flips that model—because waiting for a problem to show up before testing for it doesn’t make sense.
Getting these 100+ tests through your doctor would mean:
Finding a doctor willing to order them all.
Hoping insurance covers them (which it likely won’t).
Facing surprise bills for advanced tests.
Not getting the time or depth needed to fully understand your results.
Function makes it simple—whole-body testing, clear insights, no hidden costs.
Function includes 5x more lab tests than most primary care check-ups. This includes heart, thyroid, hormones, metabolic, kidneys, liver, nutrients, heavy metals, and more. Function also tracks your results over time and brings you actionable insights from the world’s top doctors based on your specific results. All lab tests are ordered and reviewed by licensed clinicians.