Gift time, not stuff

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

Gift a membership Buy Function for yourself

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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.

Take action

Use your results to adjust your daily habits and build a routine that actually works for your body.

Testing is easy

100+ lab tests

Schedule at 2k+ Quest Diagnostics locations

Results explained

By top doctors and 1000s of hours of research

Follow your protocol

Take action. Test again.

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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

/day

Charged annually at $499

Gift a membership

160+ lab tests annually

Testing 2x/year and on-demand

Insights from top doctors and researchers

All-in-one for your whole body

Tracked in one secure place

Clinicians review every result and flag issues

Personalized protocol for instant action

Add advanced MRI and CT scans anytime

No insurance, transparent pricing