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HSA/FSA Eligible

Check your health.

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

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160+ lab tests
Total each year
Whole body
Tested 2x per year
$1 per day
$365 per year

Testing is easy

01

Schedule

Add a scan at any time with Function member-exclusive pricing or book directly for full price.
02

Scan

Trusted imaging partners provide you with a seamless experience for both MRI and CT.
03

Plan

Results are reviewed by board-certified radiologists. Your personalized report has clear, actionable insights.
Start testingSee how it works

Monitor early indicators of 1000s of diseases

Establish your long-term baseline

Tracked for life

Monitor how your body changes

Gout
Celiac disease
Hypothyroidism
Alzheimer’s disease
Mold toxicity
Coronary artery disease
Diabetes
Anemia
Addison’s disease
Hashimoto’s thyroiditis
Pancreatic cancer
Hypogonadism
Ovarian cancer
Sickle cell disease
Prostate cancer
Fatty liver disease
Graves’ disease
Lupus
Rheumatoid arthritis
Sjögren’s syndrome
Lead toxicity
Hemochromatosis
PCOS
Insulin resistance
Chronic kidney disease
Insulin resistance
Addison’s disease
Prostate cancer
Lupus
Gout
Sickle cell disease
Celiac disease
Mold toxicity
Rheumatoid arthritis
PCOS
Chronic kidney disease
Hemochromatosis
Fatty liver disease
Ovarian cancer
Pancreatic cancer
Anemia
Hypothyroidism
Sjögren’s syndrome
Diabetes
Alzheimer’s disease
Hashimoto’s thyroiditis
Coronary artery disease
Lead toxicity
Graves’ disease
Hypogonadism
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
Graves’ disease
Hashimoto’s thyroiditis
Rheumatoid arthritis
PCOS
Anemia
Mold toxicity
Hypothyroidism
Alzheimer’s disease
Diabetes
Addison’s disease
Sjögren’s syndrome
Gout
Chronic kidney disease
Pancreatic cancer
Coronary artery disease
Celiac disease
Sickle cell disease
Ovarian cancer
Lead toxicity
Fatty liver disease
Lupus
Prostate cancer
Hemochromatosis
Hypogonadism
Insulin resistance
Diabetes
Addison’s disease
Sickle cell disease
Rheumatoid arthritis
Anemia
Lead toxicity
Pancreatic cancer
Gout
Coronary artery disease
Chronic kidney disease
Hypothyroidism
Hypogonadism
Sjögren’s syndrome
Celiac disease
Hemochromatosis
Hashimoto’s thyroiditis
Insulin resistance
Mold toxicity
Fatty liver disease
Ovarian cancer
Alzheimer’s disease
Lupus
Graves’ disease
PCOS
Prostate cancer
Addison’s disease
Pancreatic cancer
Gout
Hypothyroidism
Chronic kidney disease
Mold toxicity
Hypogonadism
Sjögren’s syndrome
Prostate cancer
Anemia
Ovarian cancer
Fatty liver disease
Lead toxicity
Rheumatoid arthritis
Insulin resistance
Sickle cell disease
Celiac disease
PCOS
Hashimoto’s thyroiditis
Hemochromatosis
Coronary artery disease
Lupus
Alzheimer’s disease
Diabetes
Graves’ disease
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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
GRAIL 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
“I’ve been so impressed 
by Function.”
Andrew
Huberman
"I deeply believe in Function's mission."
Jay
Shetty
"Function helps me understand my own biology."
Baya
Voce
"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. No startup labs. No unreliable at-home blood draws.

2,000+ lab test locations across the US

2,000
2k

50+ million results delivered to Function members

50M+

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 GRAIL 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
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.

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.