Whole-body baseline
Go beyond a basic physical with testing across heart health, metabolism, hormones, thyroid, nutrients, immune health, liver, kidneys, and more.
Function Health membership Your health, in one membership.
Get 160+ lab tests, clinician-reviewed insights, and a personalized plan. Then track what changes over time.
- HSA/FSA Eligible
- Testing at Quest Diagnostics
- Annual + mid-year testing
$365 per year
Membership renews annually unless canceled.
Function is a full-body health membership built to help you understand your baseline, spot changes earlier, and turn your results into clear next steps.
- 160+ lab tests across your whole body
- Clinician review of every result
- Personalized insights and clear next steps
- Results tracked together in one secure place
What’s tested:
Tracking over time
Return for a mid-year test 3–6 months later so you can see what changed and follow the signals that matter most.
Insights for action
See clinician-reviewed results in plain language with personalized insights and practical next steps.
Early indicators
Monitor early indicators of 1000s of diseases. Establish your long-term baseline and track changes over time, giving you and your clinician more context when something shifts.
What is included with a Function membership?
- 160+ lab tests across heart, hormones, thyroid, immunity, cancer signals and more.
- Track thousands of health signals over time.
- Clinicians provide detailed written review of results.
- Action plans based on results.
- Annual MRI and Heart+Lungs CT at Function-only cost.
- Add-on tests for allergies, Alzheimer’s, autoimmunity and more.
- Test at 2,000+ locations across the US at no additional cost.
- Choose an at-home or office blood draw for an additional fee.
- HSA/FSA eligible.
How often do I test?
Membership starts with an Annual Test and includes a Mid-Year Test 3–6 months later to help you track meaningful changes.
Where does testing happen?
Schedule testing through Function at 2,000+ Quest Diagnostics locations nationwide. Optional at-home blood draws are available in select areas.
Do I need insurance?
No insurance is required. Function uses transparent membership pricing, and HSA/FSA eligibility can depend on your plan.
Simple & easy testing:
Join Function and complete your health profile
Create your account, answer a few health questions, and schedule your first round of testing.
Complete your lab tests
Visit a nearby Quest Diagnostics location, or choose an optional at-home blood draw where available.
Review your results and take action
See your results, clinician flags, personalized insights, and next steps together in Function.
Function's data-driven, educational approach has enabled me to lose 65 lbs, put my diabetes into remission, and reduce or eliminate most of my medications. It has likely added 20-25 healthy years to my life.
Function gives me the view and accountability into the things that need improvement and the things that need work. This is a new standard of care as health is more than just the absence of disease. This is easily the best healthcare purchase I've made in the last 20 years.
Function is a blessing to my life. If I had Function earlier in my life, I would not have struggled with PCOS, IBS, and food sensitivities for as long as I did. I am SO excited to have this moving forward. I feel relieved, empowered, and inspired.
Individual results may vary.
The same person, two different outcomes
See the difference between consistent testing and relying on a standard checkup alone.
OUTCOME #1
With Function
- Lab test coverage160+ lab tests across your whole body
- Testing cadenceAnnual testing plus a mid-year follow-up
- Results over timeChanges tracked together in one secure place
- Action planClinician-reviewed insights and personalized next steps
- AI Private ChatConnect your health data to ChatGPT, Claude, Perplexity, and more
OUTCOME #2
Without Function
- Lab test coverageA standard checkup may include about 26 tests
- Testing cadenceOften once a year, when tests are ordered
- Results over timeResults can remain scattered across providers
- Action planFewer signals and less context between visits
- AI health contextNo private way to connect your complete health data to leading AI tools
See more. Know more.
A clearer view of your health today, plus a consistent way to follow it over time.
-
160+
Lab tests annually
Across your whole body
-
2×
Testing each year
Annual and mid-year testing
-
2,000+
Lab locations
Available nationwide
Data that puts your health in motion
Find out where you stand. Decide where you’re going.
160+ biomarkers
160+ lab tests
160+ lab tests
Next steps
Clear action plans
Wearables
Integration with health trackers
Steps
4,787
avg
Sleep
7.5
hrs avg
Resting HR
64
bpm avg
Apple health iFit Withings Peloton Oura Fitbit Garmin
Plus, bring your results wherever you go
Share with your doctor or connect directly to AI.
The new standard for health
Health for a new, discerning generation
“I’ve been so impressed by Function.”
Andrew Huberman
“I recommend Function for every woman, every year of her life.”
Dr. Jen Ashton
“I deeply believe in Function’s mission.”
Jay Shetty
“Function helps me understand my own biology.”
Baya Voce
Function like Aimee
The cancer signals doctors missed
Function like Alan
From diabetes diagnosis to action
Function like Geoff
Finding prostate cancer after testing
Function like Catherine
You can’t diet or exercise this away
Gold standard for lab testing
Labs trusted by the medical community. Established partners. Consistent, reliable results.
Explore testing options
2,000+ lab test locations across the US
2000+
2k+
Over 75 million results delivered to Function members
75M+
75M+
Not your average checkup
Standard checkup
160+
Lab tests annually
~26
Personalized action plan
Upload past results
No insurance needed
Every 6 months
Hormones & fertility testing
Heavy metal & toxin testing
Metabolic & pancreatic testing
Standard checkup
Lab tests annually
160+
~26
Personalized action plan
Upload past results
No insurance needed
Every 6 months
Hormones & fertility testing
Heavy metal & toxin testing
Metabolic & pancreatic testing
Advanced imaging at member-only prices
Pair your lab testing with an annual MRI or Heart + Lungs CT. Function members get exclusive scan pricing, including an advanced MRI for $899.
Member-only value: Save up to $200 on eligible Function scans.
Deeper insight: MRI can screen for hundreds of conditions, while CT can reveal important heart and lung risks.
Easy to access: Book through Function with our trusted imaging partner.
Built with the world's top doctors
Function’s Medical & Scientific Board
Mark Hyman, M.D.
Former Cleveland Clinic physician. Co-founder and chief medical officer of Function.
JoAnn E. Manson, M.D., MPH, DrPH
Chief of Preventive Medicine at Brigham & Women's Hospital. Professor at Harvard.
Andrew Huberman, PhD
Professor of Neurobiology at Stanford School of Medicine.
Toby Cosgrove, M.D.
Former CEO of Cleveland Clinic. Top heart surgeon.
Daniel Sodickson, M.D., PhD
Former chief of innovation in radiology at NYU Langone. Pioneer of AI-driven MRI. Chief medical scientist at Function.
Azra Raza, M.D.
Top medical oncologist. Professor at Columbia University.
Eddie Chang, M.D.
Professor and chair of Neurological Surgery at UCSF.
Luis A. Diaz, M.D.
Head of the Division of Solid Tumor Oncology at Memorial Sloan Kettering Cancer Center.
Yves Michel Duroseau, M.D.
Chair of the Department of Emergency Medicine at Lenox Hill Hospital.
Jordan Shlain, M.D.
Primary care physician. Founder and chairman of Private Medical.
Jen Ashton, M.D., M.S.
Double board-certified in OBGYN and Obesity Medicine; MS in Nutrition.
Mark Hyman, M.D.
Former Cleveland Clinic physician. Co-founder and chief medical officer of Function.
JoAnn E. Manson, M.D., MPH, DrPH
Chief of Preventive Medicine at Brigham & Women's Hospital. Professor at Harvard.
Andrew Huberman, PhD
Professor of Neurobiology at Stanford School of Medicine.
Toby Cosgrove, M.D.
Former CEO of Cleveland Clinic. Top heart surgeon.
Daniel Sodickson, M.D., PhD
Former chief of innovation in radiology at NYU Langone. Pioneer of AI-driven MRI. Chief medical scientist at Function.
Azra Raza, M.D.
Top medical oncologist. Professor at Columbia University.
Eddie Chang, M.D.
Professor and chair of Neurological Surgery at UCSF.
Luis A. Diaz, M.D.
Head of the Division of Solid Tumor Oncology at Memorial Sloan Kettering Cancer Center.
Yves Michel Duroseau, M.D.
Chair of the Department of Emergency Medicine at Lenox Hill Hospital.
Jordan Shlain, M.D.
Primary care physician. Founder and chairman of Private Medical.
Jen Ashton, M.D., M.S.
Double board-certified in OBGYN and Obesity Medicine; MS in Nutrition.
What could cost you $15,000 is $365
Your health shouldn’t depend on insurance.
- 160+ lab tests annually
- Annual testing plus a mid-year follow-up
- Insights from top doctors and researchers
- Testing across your whole body
- Tracked in one secure place
- Clinicians review every result and flag what is out of range
- Personalized insights and clear next steps
- Access MRI and CT at member-only pricing
- No insurance, transparent pricing
Function blows my mind. The experience, price, and clinician notes are all phenomenal.
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.
What we test
160+ lab tests chosen by the world’s top doctors to help give you the most complete picture of your current and future health. No compromises in depth.
Heart(15)
Available add-ons
Thyroid(5)
Available add-ons
Cancer Detection(1)
Available add-ons
Autoimmunity(4)
Available add-ons
Immune Regulation(7)
Available add-ons
Female Health(10)
Available add-ons
Male Health(12)
Available add-ons
Metabolic(5)
Available add-ons
Environmental Toxins(2)
Available add-ons
Biological Age(1)
About biological age
Nutrients(19)
Available add-ons
Stress & Aging(2)
About stress & aging
Liver(9)
About liver
Blood(10)
About blood
Kidneys(9)
About kidneys
Pancreas(2)
About pancreas
Brain Health(3)
Available add-ons
Electrolytes(6)
About electrolytes
Allergies & Sensitivities(3)
Available add-ons
Urine(20)
About urine
Bone Health(1)
Available add-ons
Infections(2)
Available add-ons
Gut(1)
Available add-ons
Sexual Health(2)
Available add-ons
