Function Health — check your health

Check your health.

Every year. Starting with 160+ lab tests detecting 1000+ conditions. Just $365 per year—$1 per day.

Start testing

160+ lab tests

Total each year

Whole body

Tested 2x per year

$1 per day

$365 per year

Testing is easy

01

160+ lab tests

Test at home or 2,000+ lab locations

02

Results explained

By top doctors and 1000s of hours of research

03

Follow your plan

Take action. Test again.

Start testing See how it works

Monitor early indicators of 1000s of diseases

Establish your long-term baseline

Tracked for life

Monitor how your body changes

160+ lab tests chosen by top doctors

“The most powerful approach I’ve seen in my career. Uncompromising depth with no shortcuts.”

Mark Hyman, M.D.

Former Cleveland Clinic physician

Hormones & thyroid

16 Biomarkers

Cancer & other silent risks

34 Biomarkers

Heart & metabolic

18 Biomarkers

Aging

34 Biomarkers

Mental health & focus

20 Biomarkers

The new standard for health

Health for a new, discerning generation

“I’ve been so impressed by Function.”

Andrew Huberman

"Function helps me understand my own biology."

Baya Voce

"I deeply believe in Function's mission."

Jay Shetty

"Helped me finally identify imbalances and optimize my hormones."

Mari Llewellyn

Real people. Real results.

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

2,000+

Over 75 million results delivered to Function members

Not your average checkup

Standard checkup

160+

Lab tests annually

~26

Personalized action plan

Upload past results

No insurance needed

Every 6 months

Built with the world's top doctors

Function’s Medical & Scientific Board

Mark Hyman, M.D.

Former Cleveland Clinic physician. CMO of Function Health.

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

Chief of Innovation at NYU Langone. Pioneer of AI-driven MRI.

Azra Raza, M.D.

Top medical oncologist. Professor at Columbia University.

Eddie Chang, M.D.

Professor & 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.

What could cost you $15,000 is $365

Your health shouldn’t depend on insurance.

Function Membership

$1/day

Charged annually at $365

Join Function

Join Function

★★★★★

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.

Frequently asked questions

What is Function?
Function is a membership that gives you access to 160+ lab tests, doctor-reviewed insights, and a personalized health plan so you can understand your results and take action over time.

Why was Function created?
We created Function with a single mission: empower you to live 100 healthy years. That starts by giving you a more complete view of your body through 160+ lab tests, advanced imaging, and insights from top doctors. From heart, hormones, and immunity to early signs of cancers, aneurysms, cysts, fatty liver, and more, Function can help you detect changes before symptoms appear—so you can take action earlier, and feel your best longer. It's time you own your health.

Will my results include explanations?
Yes. Every result comes with explanations created by top doctors and built on thousands of hours of research—so you’ll actually understand what your numbers mean. You’ll get action items and a clinician’s full summary.

Do biomarkers change over time?
Yes. Biomarkers shift with your lifestyle, stress, diet, and sleep. Regular testing shows what’s changing—and gives you the power to act on it.

How often do I test with Function?
At least twice a year. Membership includes 160+ lab tests annually, selected by the world’s top doctors to monitor for signs of thousands of diseases. Start with 100+ tests at your annual visit, and follow up with 60+ tests 3-6 months later to see what’s changed. Hormones, heart, thyroid, nutrients, metals, metabolic health, autoimmunity, liver, and electrolytes—what others skip, we don’t.

You can test any biomarker on-demand anytime for an additional member-only cost.

Life is short?

We disagree.

Start testing What we test