A clearer baseline
Look beyond a standard physical with testing across heart health, metabolism, hormones, thyroid, nutrients, immune health, liver, kidneys, and more.
CLINICALLY BACKED See more of your health, before subtle changes are easy to miss.
Get 160+ lab tests, clinician-reviewed insights, and a personalized plan that helps you understand hormones, heart health, thyroid, metabolism, and more over time.
- HSA/FSA Eligible
- Testing at Quest Diagnostics
- Annual + mid-year testing
$365 per year
Membership renews annually unless canceled.
Function brings testing, clinical interpretation, and follow-through into one place so you can understand your baseline, catch meaningful changes earlier, and know what to do next with more context.
- 160+ lab tests across your whole body
- Clinician review of every result
- Personalized insights and clear next steps
- Results tracked together in one secure place
What’s tested:
Changes over time
Return for a mid-year test 3–6 months later so your results show what is changing, not just where you started.
Clear next steps
Your results are reviewed by clinicians and explained in plain language, with insights and next steps you can use.
Earlier signals
Spot early indicators across 1000s of diseases. Build a long-term baseline and follow changes over time, so you and your clinician have more context when something shifts.
What is included with a Function membership?
- 160+ lab tests across heart, hormones, thyroid, immunity, cancer signals and more.
- Track thousands of health signals over time.
- Clinicians provide detailed written review of results.
- Action plans based on results.
- Annual MRI and Heart+Lungs CT at Function-only cost.
- Add-on tests for allergies, Alzheimer’s, autoimmunity and more.
- Test at 2,000+ locations across the US at no additional cost.
- Choose an at-home or office blood draw for an additional fee.
- HSA/FSA eligible.
How often do I test?
Membership starts with an Annual Test and includes a Mid-Year Test 3–6 months later to help you track meaningful changes.
Where does testing happen?
Schedule testing through Function at 2,000+ Quest Diagnostics locations nationwide. Optional at-home blood draws are available in select areas.
Do I need insurance?
No insurance is required. Function uses transparent membership pricing, and HSA/FSA eligibility can depend on your plan.
Simple & easy testing:
Join and share your health history
Create your account, answer health questions, and schedule your first round of testing.
Complete your tests
Visit a nearby Quest Diagnostics location, or choose an optional at-home blood draw where available.
Review your results
See your results, clinician flags, personalized insights, and next steps together in Function.
Two paths, one earlier read
See how broader testing and connected results can change what you notice, understand, and do next.
HOW IT WORKS
With Function
- What you can see160+ lab tests that show more of the full picture
- When you testAnnual testing plus a mid-year follow-up to catch change sooner
- What connectsYour results tracked together in one secure place
- What you do nextClinician-reviewed insights with personalized next steps
- What adds contextYour past and present results stay together, so patterns are easier to spot
WHAT HAPPENS WITHOUT IT
Without Function
- What you can seeA standard checkup may include about 26 tests
- When you testOften once a year, when tests are ordered
- What connectsResults can stay scattered across providers
- What you do nextLess context can make next steps harder to see
- What adds contextYou may need to piece together changes across visits, labs, and providers
Entering menopause and being diagnosed with thyroid cancer coincided with my first Function labs, and the timing couldn’t have been better.
Function gave me a clear, comprehensive view of my health in one place. It’s allowed me to connect the dots.
This is the most comprehensive lab testing I have ever had. I am thrilled to know more about my health and how to improve it.
A fuller picture. Over time.
Broad testing, repeat testing, and nationwide access so you can understand changes over time, not just in one moment.
-
160+
Lab tests per year
A broad view across your body
-
2×
Testing each year
See what changes between tests
-
2,000+
Lab locations
Access care across the country
See more when your signals connect
Your results mean more when testing, daily data, and changes over time are seen together. You'll see what needs attention now and what is shifting over time.
ADVANCED TESTING
Your baseline, clearly seen
Your baseline, clearly seen
HOW IT WORKS
What to watch. What to do.
HOW IT WORKS
Daily signals in context
Steps
4,787
avg
Sleep
7.5
hrs avg
Resting HR
64
bpm avg
Apple health iFit Withings Peloton Oura Fitbit Garmin
Recognized voices speaking to better care
Coverage and conversation around Function reflect a growing interest in more proactive care, including better support for women’s health over time.
"I recommend Function for every woman, every year of her life."
Dr. Jen Ashton
“I’ve been so impressed by Function.”
Andrew Huberman
"I deeply believe in Function's mission."
Jay Shetty
"Function helps me understand my own biology."
Baya Voce
Function like Rebecca
Reassurance after breast cancer treatment
Function like Sarah
Finding clarity through postpartum anxiety and fatigue
Function like Lauren
Using lab results to advocate for her metabolic health
Function like Cari
Taking back control after an ovarian cancer diagnosis
A more rigorous way to know your health, built to a higher standard
Built on medical standards, with testing through 2000+ Quest locations nationwide or an at-home blood draw with a licensed specialist. You get one place to see your results in context over time.
2,000+ places to test with Quest nationwide
2,000+
2,000+
75M+
75M+
Over 75 million results used to deepen the picture
See what broader testing catches, over time.
Standard checkup
Lab tests annually
160+
~26
Personalized action plan
Upload past results
No insurance needed
Every 6 months
Hormones & fertility testing
Heavy metal & toxin testing
Metabolic & pancreatic testing
Heart testing beyond cholesterol
Nutrient/electrolyte testing
Autoimmunity testing
Thyroid testing
Access to MRI & CT
Access to Galleri® Multi-Cancer Test
Access to Alzheimers & brain testing
Access to mold reactivity testing
Standard checkup
Lab tests annually
160+
~26
Personalized action plan
Upload past results
No insurance needed
Every 6 months
Hormones & fertility testing
Heavy metal & toxin testing
Metabolic & pancreatic testing
Heart testing beyond cholesterol
Nutrient/electrolyte testing
Autoimmunity testing
Thyroid testing
Access to MRI & CT
Access to Galleri® Multi-Cancer Test
Access to Alzheimers & brain testing
Access to mold reactivity testing
What your body is saying, all in one place.
When something feels off, you want answers you can act on. Function brings your testing, trends, and next steps into one place, so you can see patterns over time and move forward with a clearer plan instead of piecing it together on your own.
See patterns: Follow changes over time instead of looking at one result on its own.
Get context: Understand what your results may mean together, not one by one.
Know what to do next: Leave with clearer next steps you can share with your care team.
One place to get started, one plan for $365
Join one connected experience built to help you understand your health with more clarity.
- 160+ lab tests across your whole body
- Testing 2x/year and on-demand
- Insights from top doctors and researchers
- Blood draws at 2,000+ labs or at your home or office
- Tracked in one secure place
- Clinicians review every result and flag issues
- Personalized steps to help you take action
- Add MRI and CT anytime
- No insurance, transparent pricing
Function blows my mind. The experience, price, and clinician notes are all phenomenal.
This is the most comprehensive lab testing I have ever had. I am thrilled to know more about my health and how to improve it.
Best money I have spent on healthcare.