What does a Function membership include?
For $499 per year, a Function membership gives you:
Function is for anyone 18 and older. The sooner you establish a baseline, the better—you’ll see where you stand today and track changes over time. Understanding your body’s trends gives you the power to make informed decisions about your future.
It's quick and easy. Just click here.
18 years and older.
Typically within just a few days. Once you join, we'll send you an email with instructions on how to schedule your lab visits.
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.
Function is currently available only in the continental U.S. To access Function, you must have permanent residency, a valid U.S. address, and an active U.S. phone number. Lab visits are offered at 2,000+ locations across 48 states, but not yet in Rhode Island, Hawaii, or Puerto Rico.
Right now. Although Function will immediately help you understand what’s actually happening inside your body, spotting negative and positive trends requires time. The sooner you start, the more you will know how to take control of your health.
Using older lab tests to understand your current health is typically not recommended, as your health is ever-changing. Function offers comprehensive lab testing that makes it easy to understand your current health status. Function also compares your most recent results with past results to reveal trends.
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.
Function includes 5x more lab tests than most primary care check-ups. This includes heart, thyroid, hormones, metabolic, kidneys, liver, nutrients, heavy metals, and more. Function also tracks your results over time and brings you actionable insights from the world’s top doctors based on your specific results. All lab tests are ordered and reviewed by licensed clinicians.
No, Function doesn’t replace your doctor—it makes you a more powerful patient. With 100+ lab tests annually and insights from top doctors, you’ll walk into appointments with a clearer picture of your health. Every set of results is reviewed by a physician, and you can share them with your doctor to make your visits more effective—potentially reducing the need for extra tests and leading to better, more informed decisions about your care.
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.
No, Function is not insurance, and we don’t accept insurance. Everything is out-of-pocket—which means clear, upfront pricing with no surprises or hidden fees.
Function membership includes biomarkers—primarily looking at blood and urine—to give you a real-time snapshot of your current health, organ function, metabolism, and risk factors. Genetic testing, on the other hand, looks at your DNA to identify inherited risks for certain diseases and is typically done once in a lifetime.Function does include some genetic testing add-ons, specifically for heart disease and Alzheimer’s risk, alongside 100+ other tests that track what’s happening in your body right now. *Advanced add-on tests may be available for an additional cost beyond your full membership. See the full list of tests here.