Gift time, not stuff

You can’t gift more years—but this comes close.

Gift a membership Buy Function for yourself

The first membership for lifelong health

100+ tests. One membership.

Test every major organ system—then do it again 3–6 months later to see what’s changing.

5x more than a standard physical

We test what can impact your future. 5x more testing than a standard physical—heart, hormones, thyroid, nutrients, metals, metabolism.

Explained by science. Built by doctors

Each result is backed by research from the world’s top clinicians—so you understand what it means and what to do next.

Your health, tracked over time

All your data, encrypted and stored in one place. See what’s improving, what’s shifting, and where to act before symptoms appear.

Testing is easy

Schedule lab tests

2,000+ Quest Diagnostics locations

Get 100+ results

Backed by thousands of hours of research

Take action

Make changes and test again

Gift a membership See how it works

Data that puts your health in motion

Find out where you stand. Decide where you’re going.

100+ biomarkers

Comprehensive testing

next steps

Clear action plans

Biological Age

wearables

Integration with health trackers

Steps

4,787

avg

Sleep

7.5

hrs avg

Resting HR

bpm avg

Apple Health

iFit

Withings

Peloton

Oura

Fitbit

Garmin

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

What could cost you $15,000 is $499

Your health shouldn’t depend on insurance.

HSA/FSA Eligible

Function membership

$42

/month

Charged annually at $499

Gift a membership

100+ lab tests

Testing twice per year

All-in-one for your whole body

Tracked in one secure place

Clinicians review every result and flag issues

Personalized action plan

Add advanced MRI and CT scans anytime

No insurance, transparent pricing

Gift a membership

As someone navigating an autoimmune condition, it's been such a relief to finally have a clear, visual way to track what’s going on in my body—and actually understand it.

Noelle

Age 46

Early detection has given me this amazing gift of extra years, probably extra decades, with my family.

Mike

Age 45

After 10 years of dealing with a health issue, 5 years of trying to get doctors to run more in-depth tests, Function finally helped me uncover the root cause.

Sandy

Age 56

Scans were always essential. Now they’re accessible, too.