Function Health is redefining how we understand and measure our wellbeing.
Founded with the mission to help people live 100 healthy years, Function combines advanced lab testing, medical insights, and simple digital tracking — giving you a clear picture of your internal health long before symptoms appear.
Through over 100 lab biomarkers, Function helps you decode your body’s performance: hormones, nutrients, heart health, inflammation, and more — so you can optimize energy, longevity, and daily performance the scientific way.
“Comprehensive lab testing like this is so important for health… I’ve been so impressed by Function — both at the level of ease of use and how actionable the results are.”
— Dr. Andrew Huberman, Neuroscientist, Stanford University
Comprehensive: 100+ lab tests across hormones, metabolism, heart, fertility, and immunity.
Data-Driven: Personalized insights explained by leading doctors and researchers.
Accessible: No insurance required. Transparent pricing and nationwide testing.
Actionable: Receive personalized recommendations to improve your habits and retest progress.
Need to find the right dose for you? Consider coaching.
Dosing strategy: Best used ongoingly.
Ideal for: Energy
All vendors are vetted for quality, to ensure they contain the right active ingredients and ratios. Each vendor provides a Certificate of Analysis , to ensure accurate dosing, and a product free of contaminants/heavy metals. Further, when brands we work with have been randomly pulled off the shelf and tested by Labdoor they have tended to score A+
Before listing products, we compile a list of available research, to determine if claims match the evidence. Likewise, we scour the the internet to gauge people’s experience with each product. Most of the products listed typically score at least [4.5/5 from reviews]. All the studies we’ve found are listed at the bottom of the page, under citations.
Please consult your healthcare professional before making any changes to your lifestyle or regime.
For further information on contraindications and allergies, please visit the vendors website.