HSA/FSA Eligible

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

Schedule at 2k+ Quest Diagnostics locations
02

Results explained

By top doctors and 1000s of hours of research
03

Follow your plan

Take action. Test again.

Monitor early indicators of 1000s of diseases

Establish your long-term baseline

Tracked for life

Monitor how your body changes

Coronary artery disease
Sjögren’s syndrome
Graves’ disease
Rheumatoid arthritis
Anemia
Ovarian cancer
Chronic kidney disease
Hashimoto’s thyroiditis
Mold toxicity
PCOS
Gout
Lupus
Hemochromatosis
Hypothyroidism
Fatty liver disease
Insulin resistance
Addison’s disease
Sickle cell disease
Prostate cancer
Hypogonadism
Celiac disease
Diabetes
Alzheimer’s disease
Pancreatic cancer
Lead toxicity
Alzheimer’s disease
Graves’ disease
Mold toxicity
Lead toxicity
Diabetes
Ovarian cancer
Hashimoto’s thyroiditis
Hypogonadism
Pancreatic cancer
Anemia
Rheumatoid arthritis
Gout
Prostate cancer
Chronic kidney disease
PCOS
Lupus
Addison’s disease
Coronary artery disease
Hypothyroidism
Sjögren’s syndrome
Celiac disease
Fatty liver disease
Hemochromatosis
Sickle cell disease
Insulin resistance
Anemia
PCOS
Insulin resistance
Mold toxicity
Graves’ disease
Pancreatic cancer
Hypothyroidism
Gout
Coronary artery disease
Sickle cell disease
Hypogonadism
Rheumatoid arthritis
Diabetes
Hemochromatosis
Prostate cancer
Lead toxicity
Hashimoto’s thyroiditis
Addison’s disease
Lupus
Fatty liver disease
Chronic kidney disease
Ovarian cancer
Sjögren’s syndrome
Celiac disease
Alzheimer’s disease
Fatty liver disease
Addison’s disease
Hypogonadism
Sickle cell disease
Graves’ disease
Ovarian cancer
Gout
Hypothyroidism
PCOS
Insulin resistance
Hemochromatosis
Lead toxicity
Coronary artery disease
Chronic kidney disease
Diabetes
Hashimoto’s thyroiditis
Celiac disease
Sjögren’s syndrome
Alzheimer’s disease
Rheumatoid arthritis
Anemia
Prostate cancer
Pancreatic cancer
Mold toxicity
Lupus
Chronic kidney disease
Graves’ disease
Sickle cell disease
Lead toxicity
Celiac disease
Hypothyroidism
Lupus
Coronary artery disease
Mold toxicity
Hemochromatosis
Hypogonadism
Prostate cancer
Diabetes
Gout
Pancreatic cancer
Rheumatoid arthritis
Insulin resistance
Ovarian cancer
Alzheimer’s disease
Fatty liver disease
Anemia
Sjögren’s syndrome
Hashimoto’s thyroiditis
PCOS
Addison’s disease
Insulin resistance
Fatty liver disease
Anemia
Hashimoto’s thyroiditis
PCOS
Diabetes
Lupus
Prostate cancer
Graves’ disease
Hemochromatosis
Hypogonadism
Coronary artery disease
Alzheimer’s disease
Ovarian cancer
Lead toxicity
Addison’s disease
Celiac disease
Rheumatoid arthritis
Hypothyroidism
Sickle cell disease
Chronic kidney disease
Sjögren’s syndrome
Mold toxicity
Pancreatic cancer
Gout
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100+ 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.
Mark Hyman, M.D.
Former Cleveland Clinic physician

Hormones
& thyroid

16 Biomarkers
Thyroxine (T4) Free
Thyroglobulin Antibodies (TgAb)
Testosterone, Total
Anti-Mullerian Hormone
Estradiol

Cancer & other
silent risks

34 Biomarkers
Galleri® Multi-Cancer Test
Prostate Specific Antigen (PSA), Total
Rheumatoid Factor (RF)
Mercury
Lead

Heart
& metabolic

18 Biomarkers
LDL Small
Lipoprotein (a)
Apolipoprotein B (ApoB)
Omega-3 Total
Insulin
Omega-6 Total

Aging

26 Biomarkers
Sex Hormone Binding Globulin (SHBG)
DHEA-Sulfate
Insulin-like Growth Factor (IGF-1)
Homocysteine
Vitamin D
Platelet Count

Mental health
& focus

36 Biomarkers
Cortisol
High-Sensitivity C-Reactive Protein (hs-CRP)
Iron
Ferritin
Methylmalonic Acid (MMA) (B12 Proxy)
MTHFR, DNA

+More

All-in-one
lab testing

See all tests

The new standard for health

Health for a new, discerning generation
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“I’ve been so impressed 
by Function.”
Andrew
Huberman
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"I deeply believe in Function's mission."
Jay
Shetty
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"Function helps me understand my own biology."
Baya
Voce
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"Helped me finally identify imbalances and optimize my hormones."
Mari

Llewellyn

Real people. Real results.

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Function like Aimee
The cancer signals doctors missed
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Function like Alan
From diabetes diagnosis to action
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Function like Geoff
Finding prostate cancer after testing
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Function like Catherine
You can't diet or exercise this away

Not your average checkup

Personalized action plan

Upload past results

No insurance needed

Every 6 months

Hormones & fertility testing

Heavy metal & toxin testing

Metabolic & pancreatic testing

Heart testing beyond cholesterol

Nutrient/electrolyte testing

Autoimmunity testing

Thyroid testing

Access to MRI & CT

Access to Galleri® Multi-Cancer Test

Access to Alzheimers & brain testing

Access to mold reactivity testing

Standard checkup

Built with the world's top doctors

Function’s Medical & Scientific Board
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JoAnn E. Manson, M.D., MPH, DrPH

Chief of Preventive Medicine at Brigham & Women’s Hospital. Professor at Harvard.

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Andrew Huberman, PhD

Professor of Neurobiology at Stanford School of Medicine.

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Toby Cosgrove, M.D.

Former CEO of Cleveland Clinic. Top heart surgeon.

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Daniel Sodickson, M.D., PhD

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

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Azra Raza, M.D.

Top medical oncologist. Professor at Columbia University.

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Eddie Chang, M.D.

Professor & Chair of Neurological Surgery at UCSF.

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Luis A. Diaz, M.D.

Head of the Division of Solid Tumor Oncology at Memorial Sloan Kettering Cancer Center.

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Mark Hyman, M.D.

Former Cleveland Clinic physician. CMO of Function Health.

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 annually
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 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 experience, price, and clinician notes are all phenomenal.