Hormones & thyroid
16 Biomarkers
- Thyroxine (T4) Free
- Thyroglobulin Antibodies (TgAb)
- Testosterone, Total
- Anti-Mullerian Hormone
- Thyroid-Stimulating Hormone (TSH)
160+ lab tests
Total each year
Whole body
Tested 2x per year
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Monitor early indicators of 1000s of diseases
Establish your long-term baseline
Tracked for life
Monitor how your body changes
AnemiaGoutCeliac diseaseAddison's diseaseInsulin resistanceFatty liver diseasePancreatic cancerOvarian cancerSickle cell diseaseSjögren's syndromeDiabetesRheumatoid arthritisMold toxicity
HypogonadismLupusCoronary artery diseaseHypothyroidismAlzheimer's diseaseHemochromatosisPCOSChronic kidney diseaseHashimoto's thyroiditisProstate cancerLead toxicityGraves' disease
160+ lab tests chosen by top doctors
“The most powerful approach I’ve seen in my career. Uncompromising depth with no shortcuts.”
Cancer & other silent risks
34 Biomarkers
- Galleri® Multi-Cancer Test
- Prostate Specific Antigen (PSA), Total
- Rheumatoid Factor (RF)
- Mercury
Heart & metabolic
18 Biomarkers
- LDL Small
- Lipoprotein (a)
- Apolipoprotein B (ApoB)
- Omega-3 Total
- Insulin
Aging
34 Biomarkers
- Sex Hormone Binding Globulin (SHBG)
- DHEA-Sulfate
- Insulin-like Growth Factor (IGF-1)
- Homocysteine
- Vitamin D
Mental health & focus
20 Biomarkers
- Cortisol
- High-Sensitivity C-Reactive Protein (hs-CRP)
- Iron
- Ferritin
- Methylmalonic Acid (MMA) (B12 Proxy)
The new standard for health
Health for a new, discerning generation
"I recommend Function for every woman, every year of her life."
Dr. Jen Ashton
“I’ve been so impressed by Function.”
Andrew Huberman
"I deeply believe in Function's mission."
Jay Shetty
"Helped me finally identify imbalances and optimize my hormones."
Mari Llewellyn
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 testing, on your schedule
Labs trusted by the medical community. Test at 2000+ Quest locations nationwide, or schedule an at-home blood draw with a licensed specialist.
75M+
75M+
Over 75 million results delivered to Function members
2,000+ lab test locations across the US
2,000+
2,000+
Or we’ll come to you—have a licensed specialist come to your home or office.
Not your average checkup
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
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
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
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
Built with the world's top doctors
Function’s Medical & Scientific Board
Mark Hyman, M.D.
Co-Founder and Chief Medical Officer.
Daniel Sodickson, M.D., PhD
Chief Medical Scientist at Function. Former Chief of Innovation in Radiology at NYU Langone.
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.
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.
Yves Michel Duroseau, M.D.
Chair of the Department of Emergency Medicine at Lenox Hill Hospital.
Jen Ashton, M.D., M.S.
Double board-certified in OBGYN and Obesity Medicine; MS in Nutrition.
Jordan Shlain, M.D.
Primary care physician. Founder and Chairman of Private Medical.
Mark Hyman, M.D.
Co-Founder and Chief Medical Officer.
Daniel Sodickson, M.D., PhD
Chief Medical Scientist at Function. Former Chief of Innovation in Radiology at NYU Langone.
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.
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.
Yves Michel Duroseau, M.D.
Chair of the Department of Emergency Medicine at Lenox Hill Hospital.
Jen Ashton, M.D., M.S.
Double board-certified in OBGYN and Obesity Medicine; MS in Nutrition.
Jordan Shlain, M.D.
Primary care physician. Founder and Chairman of Private Medical.
What could cost you $15,000 is $365
Your health shouldn’t depend on insurance.
- 160+ lab tests across your whole body
- Testing 2x/year and on-demand
- Insights from top doctors and researchers
- Blood draws at 2,000+ labs or at your home or office
- Tracked in one secure place
- Clinicians review every result and flag issues
- Personalized steps to help you take action
- Add MRI and CT anytime
- 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.