This is about catching potential issues early, when you can still do something about them. You deserve a deep view of your health as it evolves. More time with the people you love. More moments that matter.
Function exists to help make 100 healthy years a reality.
A fulfilling life depends on health, and health depends on awareness.
Labs trusted by the medical community. Established partners. Consistent, reliable results.
Includes 100+ lab tests across every major organ system—selected by the world’s top doctors to monitor for thousands of diseases.
Why Is It Called “Function”
Your body and mind should function as one.
But corrupted food systems, chronic stress, and outdated practices can push you toward dysfunction.
Let’s change that.
Get insights across your body—heart, hormones, thyroid, nutrients, toxins, inflammation, and more—so you can stay in control.
I feel good. Why test?
Testing now can help you keep feeling your best—and may catch small signals that could turn into bigger problems down the line.
For example, heart disease can build for decades.
Cancer can be silent until later stages.
What is a biomarker?
Biomarkers are measurable signals in your body—like a hormone, protein, or vital sign—that can reflect shifts in your health even before symptoms show up.
For example, elevated Apolipoprotein B levels can be linked to increased heart disease risk.
Tracking biomarkers helps you spot changes early, so you can take action sooner.
Why don't I already get these lab tests from my doctor?
Most doctors don’t order the “preventive health tests”
They wait for symptoms to show up before ordering many tests.
Testing with deeper biomarkers now gives you a deeper view now—so you can spot trends, catch changes early, and stay ahead.
Which tests are included with Function?
Includes 100+ lab tests across every major organ system—selected by the world’s top doctors to monitor for thousands of diseases.
And 60+ tests halfway through the year to see what’s changed. Hormones, heart, thyroid, nutrients, metals, metabolism, autoimmunity, liver, and inflammation.
Function is offered in labs across 48 states (but not yet Rhode Island, Hawaii, or Puerto Rico).
If it impacts your future, it is tested.
You can cancel your Function membership at any time.
How were Function’s tests selected?
The doctors—including Function’s Chief Medical Officer Mark Hyman, M.D.—hand-picked every test based on the latest science around disease detection and long-term health impact.
How accurate are the tests?
Function uses medical-grade lab tests that meet the highest clinical standards.
All samples are processed at Quest Diagnostics labs by licensed technicians. That’s why they don’t offer at-home test kits. They risk sample integrity.
Why are traditional lab tests so expensive?
Most labs charge high prices because insurance companies negotiate them down.
If your insurance doesn’t pay, you’re stuck with the bill.
The 160+ tests included in Function could cost over $15,000 elsewhere.
Is heart health testing included?
Function goes beyond the standard lipid panel and includes advanced biomarkers like
- Apolipoprotein B,
- Lipoprotein A,
- Lipoprotein Particle Size.
These can help you catch red flags early when traditional tests don’t.
Heart Tests
2x = Tested twice a year
- Apolipoprotein B (ApoB)
- HDL Cholesterol2x
- HDL Large
- High-Sensitivity C-Reactive Protein (hs-CRP)2x
- LDL Cholesterol2x
- LDL Medium
- LDL Particle Number
- LDL Pattern
- LDL Peak Size
- LDL Small
- Lipoprotein (a)
- Non-HDL Cholesterol2x
- Total Cholesterol2x
- Total Cholesterol / HDL Ratio2x
- Triglycerides2x
Available add-ons
- Extended Heart & Metabolic
- Genetic Heart Risks
Are thyroid tests included?
Yes. Function includes a detailed set of thyroid biomarkers, including TSH, T3, and T4.
Thyroid
- Thyroglobulin Antibodies (TgAb)
- Thyroid Peroxidase Antibodies (TPO)
- Thyroid-Stimulating Hormone (TSH)
- Thyroxine (T4) Free
- Triiodothyronine (T3) Free
Available add-ons
- Extended Thyroid Health
Autoimmunity
- Antinuclear Antibodies (ANA) Pattern
- Antinuclear Antibodies (ANA) Screen
- Antinuclear Antibodies Titer
- Rheumatoid Factor (RF)
Available add-ons
- Celiac (Gluten Intolerance)
- Extended Autoimmunity
Understanding Your Results
How long does it take to get my results?
Your results are delivered as soon as they are available—some within a few days.
The full set will be delivered within 3-4 weeks.
Once all results are in, a clinician reviews them and adds a written summary to help you understand the bigger picture. This happens within 1–2 weeks.
Will my results include explanations?
Yes. Every result comes with explanations created by top doctors and built on thousands of hours of research—so you’ll actually understand what your numbers mean. You’ll get action items and a clinician’s full summary.
What happens with urgent test results?
If any result is critical, a healthcare provider will call you right away.
Can I share results with my doctor?
Yes. Once your results are ready, you can log in and download them as a PDF to share with your healthcare provider.
Does Function integrate with Oura, Fitbit, Apple Health, or other health services?
Yes. You can log into Function and connect supported apps to sync your health data—all in one place. Head to “Connected Apps” after logging in to get started.
Let’s Talk Cost
How much does Function cost?
Function membership is $365 per year.
CLICK HERE for a $25 discount
One flat price for a deep-level view of your health as it changes. Because making advanced testing accessible is the right thing to do.
Is Function FSA/HSA eligible?
Yes—check with your plan to confirm eligibility. Members receive an itemized receipt to submit for reimbursement.
Who Should Do these Tests?
Anyone who wants to take control of their health—or needs a reason to start.
Give it to:
- Your partner who always says “I’m fine”
- An aging parent who wants insight into their changing body
- Your adult kids, as an investment into their future
- A caregiver who struggles to put themselves first
- A friend who has just started prioritizing their health A Function membership is more than thoughtful. It can be a powerful wake-up call, starting point, or vote of confidence for someone you love.
