Recommended by ‍ Mari Llewellyn

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 as your access code and POW100 as your gift code at checkout to unlock your $100 credit.

Function health membership

100+ lab tests

Unique health insights

Clear next steps

$499
$399
$100 off
With access and gift code

POW100

Start testing

Testing is easy

01

Schedule lab tests

At 2,000+ Quest Diagnostics locations
02

Get 100+ results

Explained by top doctors and researchers

03

Take action

Upgrade daily routines and test again

Not your average checkup

No insurance needed

Transparent pricing

Heart testing beyond cholesterol

Autoimmunity testing

Hormones & fertility testing

Nutrient & electrolyte testing

Access to cancer testing

Standard checkup

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
Join Function
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
Join Function

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

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

Mike

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

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
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