Function HealthFunction gives you access to 160+ yearly lab tests—5x more than a typical annual physical—covering everything from heart, hormones, thyroid, liver, kidneys, heavy metals, nutrients, inflammation, and more, plus actionable insights from top doctors. All results are stored in one place, making it easy to spot trends, track progress, and take action.
Function Health (functionhealth.com) has 3,039 customer reviews on Five Star Index, with an average rating of 4.4 out of 5.
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Kelly T.
Quick turn around on results. Detailed explanation of each results. Love the suggestion of supplements to help with certain issue.
Response from Function HealthOct 24, 2026
Thank you for sharing your experience, Kelly! We're glad your results were available quickly and that you found the detailed explanations and insights helpful. We truly appreciate your feedback.
Britt
Thorough tests and incredible explanations of your results and next steps.
Response from Function HealthOct 24, 2026
Thank you for sharing your experience, Britt! We're glad you found the results and explanations thorough and helpful in understanding your biomarkers and next steps. We truly appreciate your feedback.
Joseph
Extremely comprehensive overview of my current state of my health. Gave me a lot of great information on how I can improve my diet and take certain supplements to account for deficiencies.
Response from Function HealthOct 22, 2026
Thank you for your kind words. We’re delighted to hear you found the information comprehensive and helpful in identifying areas of your health to focus on. We appreciate your trust in Function.
Elaine E.
I discovered I didnt correctly cancelled auto renewal 2 yrs ago. I called their billing dept and talked to CAROL. I explained I only planned on using their services one time, due only to beening on a limited budget. The prices are quite fair and advice was spot on. If someone doesn't do the coaching services, of course, you need to spend sometime reading to understand more, looking to connect the clues of possible root causes. Anyway, I was surprised and grateful to say, they refunded all charges, where they didn't see me using their services. What an outstanding business all the way around! Dr. Harman should be proud. I been a big fan , by the way, for years! I assure you I will recommend ur services to others! My deepest thank you! Mrs Elaine C.Eastman
Response from Function HealthOct 22, 2026
Thank you for sharing such a thoughtful review. We’re so glad Carol and our team were able to assist you and bring your concerns to a resolution. Your kind words and recommendation mean a great deal to us, and we truly appreciate your trust in Function.
Ed
Everything went smooth as silk from the moment I arrived. I was helped with the sign in kiosk thing, and basically taken in immediately. The results started coming in right away. Can’t wait for the recheck.
Response from Function HealthOct 21, 2026
Thank you for your kind words. We’re delighted to hear your lab visit was quick and easy and that your results started arriving promptly. We appreciate you taking the time to share your experience.
Diane
Easy. Thorough. Simple to understand.
Response from Function HealthOct 21, 2026
To 100 healthy years.
customer
I love function and it has been a great experience using this service. I especially appreciated the ability to do my blood draw at home! I will continue to use function to monitor my health.
Response from Function HealthOct 21, 2026
Thank you for sharing your experience. We’re glad you enjoyed the convenience of at-home blood draws and look forward to continuing to support you with valuable health insights.
Shai M.
I take my health seriously, and I wanted to check where it was, so I decided to go all out and check the source. The experience was great and pretty straightforward. I even got a membership for my mom. Its never too late to dig in!
Response from Function HealthOct 21, 2026
Thank you for your kind words. We’re glad Function has made it easier for you to gain insights into your health. It’s wonderful to hear you’ve also introduced your mom to Function. We truly appreciate your support.
