Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for ONNIT Alpha BRAIN Nootropic Brain Health Supplement Capsules, 78 ct. for
ONNIT Alpha BRAIN Nootropic Brain Health Supplement Capsules, 78 ct.
3.8 out of 5 stars
stars
12K ratings11.9K reviews
  1. 5 stars52% (6,258)
  2. 4 stars15% (1,793)
  3. 3 stars10% (1,251)
  4. 2 stars7% (859)
  5. 1 star16% (1,909)

Member photos

Sort by |
Showing 1,971-1,980 of 11,986 reviews
Jan 19, 2024
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

I'M A FAN !!!!

i am a bit suprised in the almost immediate ( a few days ) change/how fast i noticed the difference from when i was " not! " taking this>>> THUMBS UP ! - GOOD PRODUCT !

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 17, 2023
Reviewer name: WWWj
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Didn’t like the way I felt

The alpha brain did not sit well with me. While I was on it, it caused me to feel a bit more sad and emotional. I do take other supplements for brain improvement, and this one did not sit well with me.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Customer Service

Thanks for sharing your experience with Alpha Brain! We’re very sorry to hear that you didn’t notice any benefits. Being that we're all unique individuals, everyone's experience will be a little different. Please reach out to our customer service team directly by emailing help@onnit.com if you need further assistance!

Oct 31, 2023
Reviewer name: Jim k
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Seems to work for me . 2nd order

I really can sense the difference from before taking alpha brain. This is my 2nd order. I actually ordered the 90 day supply this time. I'm really happy with it and definitely feel a difference.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 30, 2023
Reviewer name: cconline1971
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Nothing noticeable

Bought two bottles on the strength of the core sponsor Joe Rogan's testimony, but so far I have not noticed anything appreciable in memory recall, sharpness, etc.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Onnit Customer Service

Thanks for giving Alpha Brain a shot and for sharing your experience! Everyone's experience can be a bit different with a formula like this. It's formulated to help support memory, focus, and processing speed, and it can take some regular use to really feel these changes. That being said, if you still aren't feeling it after 2 weeks of regular use, let us know! We're happy to help with some supplement tips and/or to help facilitate a return if needed. You can email help@onnit.com for further assistance with your order!

Aug 28, 2019
Reviewer name: Andrew Nordberg
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Definitely Works!

Alpha Brain works just as promised! I find it helpful when working in the afternoon, when I don't want to have more caffeine. I also really enjoy it before hanging out with good friends, I find it enhances that experience greatly.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 16, 2022
Reviewer name: Ty85
2 out of 5 stars
2 out of 5 stars review

Verified Purchase

Not as effective as claimed to be

Didn't notice a difference in taking this for 2 weeks. If it takes longer to kick in then I'd recommend a larger bottle if only it weren't so expensive for what you get.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Customer Experience

​​Thanks for leaving a review about your experience with Alpha Brain! We’re bummed to hear that you didn’t have the experience that you expected while taking it. Being that we all have different needs, it's expected that we all respond to supplements a bit differently. Please feel free to reach out to us directly by emailing help@onnit.com if you need further assistance.

Jan 11, 2024
Reviewer name: BBZZ
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Product works well

I wasn’t sure at first if I could tell If this was working. After about two weeks I noticed I wasn’t as tired through out the day and waking up easier. I feel more Clarity with work too

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 26, 2025
Reviewer name: sheloveg_7408
5 out of 5 stars
5 out of 5 stars review

Good

[This review was collected as part of a promotion.] Good ingredients and its price is adorable and affordable, well packaged, really effective, you will find good results, I recommend it to you, it's good

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jan 8, 2024
Reviewer name: Paul
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Recommended buy

I can feel a difference whenever I take the Alpha Brain, I feel more alert and my mental acuity is greater. It helps me to communicate better. When I forget to take I feel a noticeable difference and then I take it and feel an improvement

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 5, 2023
Reviewer name: Pedro
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

It worked wonders!!

The first couple of days I was using the recommended dosage. But it was too much for me. So I halved the dosage and it worked wonders for me. I will definitely get more.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153