Honesty, pricing, process and quality scores appear once 5 customers have rated them.
About Function Health
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 Folks Told, with an average rating of 4.4 out of 5.
The company provided several insight on deficiencies and positive markers regarding my overall health. The company followed up with a vital summary and recommendations into improving the deficiencies as well as maintaining a healthy lifestyle. Which is not provided through the normal health network.
Reply from Function HealthAug 13, 2026
Thank you for sharing, Ralph. We’re glad the insights and summary helped you better understand your results and identify areas to focus on. We appreciate you sharing your experience with Function!
MI
Mike
Functional Health Blood Test Review
Functional Health Blood Test Review
The results provide favorable, clear information that can be actionable. I especially appreciate that the clinical notes are straightforward, practical, and focused on what the results may mean and what can be done with that information.
The biggest strength is the lack of unnecessary drama or alarmism. The information is presented in a way that helps the reader understand potential areas for attention without making every finding sound like a problem. That makes the results more useful for having an informed conversation and deciding what, if anything, needs to be addressed.
Overall, the interpretation is clear, practical, and appropriately focused on what can be actionable rather than what might be alarming.
Reply from Function HealthAug 13, 2026
Mike, thank you for the thoughtful review. We’re glad the Clinician Notes made your results feel clear, practical, and easy to put into context without creating unnecessary concern. We appreciate you sharing what made the experience valuable for you.
SA
Sandy
Thorough testing with recommendations
Thorough testing and detailed, helpful information. Highly recommend!
Reply from Function HealthAug 12, 2026
To 100 healthy years.
ST
Steve
You need to make it easier to send lab…
You need to make it easier to send lab results to doctors. What I find is that I show it to them on the app, they get super annoyed by it and then just have me rerun the tests so it goes into MyCHarts. A link right into my charts would be awesome.
Reply from Function HealthAug 9, 2026
Thank you for taking the time to share your experience. We appreciate your suggestion about improving how results can be shared with healthcare providers. Your feedback helps us identify opportunities to improve the member experience.
EE
Eric E.
Communication is great
Communication is great. The lab draw was easy and convenient. The lab interpretation was thorough and helpful. I am happy to be part of the Function Health experience.
Reply from Function HealthAug 13, 2026
Thank you for the kind words, Eric. We’re glad the communication has been clear, your lab visit was easy and convenient, and you found the insights thorough and helpful. We’re happy to have you with us!
CH
Christina
Good value on paper, but the mid-year retest and add-on pricing need improvements.
Function's base membership is a genuinely good deal compared to similar direct-to-consumer lab companies — a huge panel for the price, and the fact that a mid-year retest is included at all puts it ahead of most competitors. If it stopped there, this would be a 4 or 5-star review.
What's dragging it down:
1) The mid-year retest cuts out markers that should be considered baseline standard, not annual-only. Per Function's own "What We Test" page, Lp(a), ApoB, LDL Particle Number, homocysteine, and the full omega panel are only tested once a year. These aren't niche biomarkers — they're markers health professionals broadly agree matter for cardiovascular and metabolic health, and twelve months is a long time to fly blind on inflammation drivers if you're actively working on your health. At minimum, I'd like to see the full omega panel and Vitamin D included in every mid-year retest for all members, not gated to the annual draw.
2) The add-on pricing punishes the behavior you'd want to encourage. I had 13 out-of-range markers from my first draw this year. Retesting just those 13 would have been an add-on cost of $443. However choosing the add-on to re-test literally everything that got tested in the main test was just $309. That's backwards — they are making it cheaper to redo the entire panel than to follow up specifically on just the things that were flagged as out-of-range. I'd love to see something like "up to 10 retests on out-of-range markers included" bundled into membership, or at minimum a real discount for retesting flagged markers instead of a premium.
3) The scheduling flow for add-ons doesn't clearly indicate which tests are already included once a year vs twice vs which are always add-on-only. You have to literally open every single "read more" to find out. It's easy to accidentally pay for something you already have coming, or miss adding something you actually need. And along those lines, some of the 'packaged tests' overlap with individual tests, but they don't warn you about that at all. They just let you pay for the same marker being tested twice in one test. Poor form.
4) Small thing, but it is really annoying: on the mobile app, when reviewing add-on tests there's no "back" button once you hit Next. If you want to go back to see something on a previous screen, you have to abandon the whole scheduling flow and start over. Super frustrating!
Bottom line: strong core product, but the retest cost and structure and scheduling UX in the app feel like they were built around getting people to re-buy full panels rather than actually supporting ongoing health tracking.
Reply from Function HealthAug 9, 2026
Thank you for taking the time to share such thoughtful feedback. We’re glad you found value in the membership overall. We appreciate your detailed suggestions about mid-year testing, add-on pricing, and the scheduling experience. Feedback like yours helps us identify opportunities to improve the member experience.
JE
Jeff
Amazing information!
Amazing information!
Reply from Function HealthAug 12, 2026
Thank you for your thoughtful review. We appreciate your support.
OL
Olivia
I only wish I knew all this many years ago
I was impressed by all the detailed feedback I received on all 119 of my biomarkers. Very, very helpful! I only wish someone had explained it so clearly and in all the details to me 60 years ago. I would have had much better knowledge of what I needed to focus on to stay healthy and especially how to avoid habits that didn't support what I tried all my life to achieve. Even though I always tried my best, without any explanation of what all the results of my blood tests mean, I had very little knowledge of what the biomarkers and the numbers even meant. Even though it was not an easy decision for me to make to spend so much money, I am glad I listened to my intuition. I do not have many years left on this Earth, but at least for the rest of my life I will do my best to follow the recommendations I received to the best of my ability. Thank you, Function Health, for providing this opportunity!
Reply from Function HealthAug 13, 2026
Olivia, thank you for sharing such a thoughtful experience. We’re glad the detailed explanations have helped you better understand your biomarkers and what areas to focus on. It means a lot to know you’ve found this information so valuable, and we’re grateful to have you with us.