Recommended by
Mari Llewellyn
Every year. Starting with 100+ lab tests and insights from top doctors. All for just $499.
Mari has secured limited early access to Function for her Pursuit of Wellness community.
"This is such a needed technology. As women, it can be challenging to figure out what’s wrong with our health and get the answers we deserve, but whole-body lab testing offers real data on what's truly out of balance. Lab testing helped me finally identify imbalances and optimize my hormones." -Mari Llewellyn
Use code POW100 twice. First as your access code at sign-up. Then as your gift code at checkout to unlock your $100 credit.
160+ lab tests
across your body
160+ lab tests
across your body
The first-ever membership that includes the cost of 160+ advanced lab tests, comprehensive across heart, thyroid, hormones, metabolic, toxins, nutrients, autoimmunity, and more. Robust results turn into actionable insights from top doctors.
160+ lab tests
Multi-region MRIs (additional fees apply)
Tracked over time
Testing is easy
Testing is easy
Included in Function
Included in Function
Be proactive about your health, disease monitoring, and a path to a longer life. Function offers one-stop for advanced lab testing, results tracking, insights, and explanations in the palm of your hand, allowing you to concentrate on living
Results over time
Results over time
Results tracked in one secure place. Dive into your health today. Monitor changes over time.
Results over time
Results over time
Results tracked in one secure place. Dive into your health today. Monitor changes over time.
Access to 160+ lab tests
Tracked over time
Monitor for early indicators of 1000’s of diseases
Access to 160+ lab tests
Tracked over time
Monitor for early indicators of 1000’s of diseases
Your new health journey rooted in understanding
Your new health journey rooted in understanding
Function includes every lab test typically part of most physicals and goes even further with access to 100+ tests across major areas like heart, thyroid, hormones, cancer markers, nutrients, immunity, autoimmunity, and more. These tests are championed by specialists, from cardiologists to endocrinologists, offering 5x more testing than an average physical. Function also provides a detailed written summary from a clinician reviewing all your latest results. If any result is urgent, a clinician will call you immediately. Each result includes personalized insights from the world’s top doctors.
Function is available in the continental US. Function requires members to have a valid US address and active US phone number. Lab visits are available at 2,000+ locations across 48 states. At this time, lab visits are not possible in Rhode Island, Hawaii, and Puerto Rico.
Getting comprehensive testing used to be complicated—confusing PDFs, endless Googling, tracking numbers in spreadsheets, and surprise bills. Function changes that. We bring it all together: clear insights, transparent pricing, and insights developed with world-class doctors based your results. No guesswork, no hidden costs—just the data you need to take control of your health.
You will be tested at one of over 2,000 lab locations across the US, within 10 miles of nearly every home in the United States. Our lab partner performs over 50 million tests per year and is trusted by the entire medical community. Lab visits are not currently available in Rhode Island, Hawaii, or Puerto Rico.
Function membership includes 100+ comprehensive lab tests to measure your current health status, organ function, metabolism, and risk factors for disease. As science continues to evolve, Function strives to integrate the latest advancements in testing, offering cutting-edge add-ons to provide you with the most in-depth insights into your overall health. *Advanced add-on tests may be available for an additional cost beyond your full membership. See the full list of tests here.