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.
I have always really liked my function and it helps knowing my lab results. However, this time around has had so many errors and the labs were incomplete. I am missing labs that I paid for. I reached out 3 times and no one obviously looked at my labs to see that stuff was not ordered and I was told to look at the more tab, which still does not contain results I paid for. Such a disappoint this time around and no one has been able to help.
Reply from Function HealthAug 11, 2026
We’re sorry for the frustration, Kelly. This isn’t the experience we aim to provide, especially after you’ve reached out multiple times for help. Our team has reviewed your account and reached out directly to clarify your remaining lab visit and results. Please reply to our email if you have any additional questions.
AL
Alice
I had to re-request a set of tests…
I had to re-request a set of tests where the results were very clearly outside the possible range, indicating lab error. It took effort, but Function ordered the test and I was able to complete them. When the results came back in range- validating the hypothesis of lab error- the original results were not only left on my account, they were incorporated into my health notes and recommended actions. I'm here for AI to support summaries, but it should only do so with human oversight, and if that isn't the case, it should be fully disclosed and not presented as human supervised.
This is a good value for tests that I otherwise would have paid more to access through health insurance, but the "health advisory" functionality is overstated at best.
Reply from Function HealthAug 8, 2026
Alice, we’re sorry this experience fell short of your expectations. We hear your concerns and appreciate your honesty. Feedback like this helps us understand where we can improve the Function experience for our members. We’re here whenever you need us. If you want to share more about your experience, contact [email protected]
KE
Kerry
Not worth the money, poor experience
I am very concerned about the issues surrounding my recent laboratory testing through Function Health and Quest, particularly the errors that occurred during collection and the subsequent inaccurate information regarding my test results.
According to the information provided by Function Health, Quest made multiple errors—not only during the collection of my blood samples, but also in how certain tests were documented. I was informed that some results were reportedly marked as “TNP” and that the tests were “cancelled at client’s request.” This is inaccurate. At no time did I request that any of my tests be cancelled.
The blood collection itself was also problematic. During my first appointment, the clinician made three attempts in three different areas. During the first draw, the needle was moved while the vial was being removed, which resulted in an unnecessarily difficult and stressful experience. Because of these issues, I was required to schedule a second appointment for another blood draw.
Subsequently, I received a request to schedule yet another, third appointment because I was told that several results were incomplete. Given my previous experience and the difficulties I had already encountered, I specifically asked to be contacted by phone to discuss the situation. Instead, I subsequently received a message stating that my results were now in and complete, without any explanation of what had changed or why another blood draw was suddenly no longer necessary.
My husband experienced a remarkably similar situation. He was also asked to return for a second blood draw because of supposedly missing information. When we requested to speak with someone about the issue, his missing markers were quickly updated and we were then told that another blood draw was no longer necessary.
Taken together, these circumstances raise serious concerns about the accuracy, reliability, and transparency of the laboratory process. The fact that results initially described as incomplete or requiring another collection can subsequently be updated without another blood draw, combined with the inaccurate notation that tests were cancelled at the client's request, is extremely concerning.
This reflects poorly not only on Quest but also on Function Health, particularly because Function Health is the service through which I relied on these laboratory results and recommendations.
I would like a clear explanation of:
Which tests were initially reported as TNP or cancelled.
Why they were documented as “cancelled at client’s request” when I never made such a request.
Which specimens were considered inadequate or incomplete and why.
Why I was subsequently told that my results were complete without another blood draw.
Whether any of my reported results may have been affected by the collection problems.
What steps Function Health is taking with Quest to ensure the accuracy and integrity of my testing.
Reply from Function HealthAug 8, 2026
Kerry, we’re truly sorry for the frustration, confusion, and concern this experience has caused. This isn’t the experience we aim to provide. Our team is reviewing your concerns and will follow up directly with a clear explanation.
TJ
TJ
Never again
You lowered the price right after I purchased and didn’t give me the new discount, so felt like the product I was getting was inferior to what I paid. Also all
The insights are pure AI slop.
Reply from Function HealthAug 7, 2026
We hear you, TJ, and we’re sorry this experience left you feeling disappointed. We appreciate your honest feedback about both the pricing and the insights you received. If you’d like us to look into your account or provide further assistance, please reach out to [email protected].
EL
Electra
It took over two months to get my…
It took over two months to get my summary report and I had to ask for it several times.
Reply from Function HealthAug 6, 2026
We appreciate you bringing this to our attention. Your comments help us identify opportunities to improve the delivery of clinician summaries for our members.
JC
JCS
I really enjoyed my initial experience…
I really enjoyed my initial experience with Function Health. I think that they offer a great service with good value for the money. The major point that I take issue with is the way they administer their promotions. First, when their annual rate was $499 a year, the offered a special rate for new customers of $365/year. It's frustrating when a company values new customer acquisition and growth over loyal customers. Then, after a few months, they dropped their rates down to $365 for everyone. I was excited that this was their new approach. Then I received an email offering a $100 discount off the rate to celebrate the Supp.co acquisition. Even though I hadn't been an active subscriber for a full year, I was deemed ineligible as a former member. Again and again, they seem to prove that they prioritize new customer acquisition over maintaining or continuing relationships. This is a Health company. I hate having to deal with them like a Cable or Satellite Radio subscription. I am super excited about their recent acquisition about supp.co, but until they change their customer service practices, I'll likely stay with the other provider that I found in their absence.
Reply from Function HealthAug 6, 2026
Thank you for taking the time to share your thoughtful feedback. We understand your perspective and appreciate you sharing it with us. Your comments about promotions and member pricing help guide future improvements as we continue working to improve the member experience.
WS
Walt S.
I had a lot of issues trying to get my…
I had a lot of issues trying to get my labs scheduled in Arizona. Seems like they have a part time person doing support - not the best. I also have 2 issues with charges but they were able to resolve them.
Overall great medical data - poor delivery though on Customer Service
Reply from Function HealthAug 3, 2026
We’re sorry to hear the scheduling and support experience fell short of your expectations. While we’re glad we were able to resolve the billing concerns, this isn’t the experience we aim to provide. Your feedback helps us identify opportunities to improve the member experience.
SV
SV
Fix the app, go beyond Quest
The app still has major scheduling issues. Quest is also a huge pain, they cancelled my appointments multiple times.
The reason for giving two stars is at least the customer service team tried to be helpful.
Reply from Function HealthAug 3, 2026
Thank you for taking the time to share your feedback. We’re sorry to hear about your scheduling experience. We appreciate you recognizing our support team’s efforts, and your feedback helps us identify opportunities to improve the member experience.