Diane
Easy
Easy. Thorough. Simple to understand.
Response from Function HealthOct 21, 2026
To 100 healthy years.

Function 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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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.
Jessica K.
Great experience. Love the app.
Response from Function HealthOct 21, 2026
Thank you for trusting us with your health, Jessica.
Todd
I continue to be pleased with the results of the program BUT, why can't anyone answer my questions when I email. Especially for seniors -- it would be great to be able to speak to a person
Response from Function HealthOct 20, 2026
Thank you for sharing your feedback. We’re glad you continue to find value in Function, and we’re sorry to hear about your frustration with the support experience. We understand how important it is to receive clear and helpful responses, and we appreciate your honesty.
Jeffrey
FH was a bit sneaky in getting me to renew my annual subscription this past year, as I received a notice that I was all set up/ready for my annual blood work. I clicked on proceed button to move to the next step (looking to see what price at which I would be renewing) and, without warning, after hitting one of the proceed buttons, my credit card was charged (without true notice that I was going to be charged).
Response from Function HealthOct 19, 2026
Hi Jeffrey, we’re sorry for the confusion surrounding your membership renewal and the unexpected charge. We appreciate your honesty and understand your frustration. Thank you for bringing this to our attention.
W. M.
I’ve used Function Health for two years now. The first two appointments were longer because they needed to understand how the blood draw would go. However, the last three have been quick and they provide a lot of insight. The information provided is clear and actionable and it’s great being able to easily track trends. Their customer service is great, and if I book a duplicate test they are quick to note it and provide a refund. All in all, it’s been a great experience and it’s pretty much the same price as doing blood draws at a doctor’s office with my insurance and copay. So maybe $100 more but way more test.
Response from Function HealthOct 19, 2026
Thank you for sharing such thoughtful feedback. We’re pleased to hear Function has been a valuable resource over the past two years and that our team has provided helpful support when needed. Your continued trust means a great deal to us.
Linda
Reasonably priced, easy process and quick results. Helped me understand what was going on inside my body so I could work towards getting back on track to health.
Response from Function HealthOct 19, 2026
Thank you for sharing your experience. We’re delighted to hear the process was straightforward and that your results helped you identify areas to focus on.