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 751-760 of 11,986 reviews
May 22, 2015
Reviewer name: yip837
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Don't miss work without it!

I have taking Alpha brain for about a year now and I honestly can say it helps me be a better speaker, podcaster, and teacher. It seems I can organize my thoughts quicker and communicate more efficiently when speaking. It's like when you are swinging a bat with a weight on it; that is normal brain function. Alpha Brain takes that weight off and the bat swings much faster. I feel my brain functions quicker and smoother.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Feb 3, 2024
Reviewer name: TPayne
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Balls to the wall

It definitely does something to boost my motivation and drive, as well as increasing focus and memory. I’ve also felt more confident and that has led to being more assertive. One small negative: I’ve noticed a slight increase in irritability, but not so much that it’s a problem.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 11, 2022
Reviewer name: Zynk
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

How I use this product.

I like to use this product onces in a while. Normally ill take this prouduct twice a week because thats where its most effective for me. Taking breaks from time to time does help with the potential of this product. Most effective for me is when I take light meals and a bit a caffine with it. It boost and help me effectively in my sales jobs in getting those sales up. A good balance with this product is rewarding.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Oct 20, 2025
Reviewer name: dayana911_9183
5 out of 5 stars
5 out of 5 stars review

Most concentration Brain Powerful

[This review was collected as part of a promotion.] I have been using this supplement for several weeks and I must say that it has helped me a lot in terms of concentration. I really like that it really helps and I feel an improvement. The flavor is neutral, the packaging is very pretty and it explains very well how to use it. Ingredientes de calidad

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 5, 2025
Reviewer name: Bossy Bullfrog
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Don't leave home without it.

I do not skip a day. 2 a day and I am a MACHINE! I have never been so productive and had such amazing flow in my life. I recently received a big promotion with a good $$ increase AND Employee of the Month. Personally, house has never been cleaner and I build a fence by myself on 1/2 acre.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 22, 2019
Reviewer name: Kdiggity
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Mad Mental Math skillz!

The first thing I noticed when taking alpha brain is that my mental math skills increased greatly. Almost like muscle memory from when I was a carpenter and I added and subtracted fractions everyday. I also find words easy to find in conversation and memory recall is still increasing.

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

Verified Purchase

Alpha Brain Trial #2

This is my second time trying Alpha Brain, the first time was about two years ago. I took it for about 6-weeks and never felt like it helped in any way. I wanted to try it again and unfortunately, I never felt any change as far as memory or focus was concerned.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Onnit 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!

Jun 27, 2023
Reviewer name: Cassandra
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Brain 🧠 power of someone half my age.

Having taken this for over 90 days now it’s made an amazing difference in how I intake and retain information. At age 67 I also have the focus 🧘🏽‍♀️ memory and comprehension of someone half my age. With these mental improvements I was able to secure a promotion at my company.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 6, 2020
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Experience is very close to Joe Rogan explanation

Experience is very close to what Joe Rogan explains. Clear thinking, language seems to come together easier, and you are in the flow and you really can get things done. In addition, Judd Apatow said he wakes up clear headed, which I also experience. Been good so far. A bit hard on the stomach sometimes, so make sure you eat something light as recommended.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 21, 2015
Reviewer name: Javy115
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great Supp

I'm an air traffic controller and ever since I started taking alpha brain I've noticed a big difference. Call it a placebo affect or whatever this stuff is legit. I've always been good at my job you have to be. But since I've started taking Alpha Brain I've been even more on point. Not just work but even my Jiu Jitsu has improved. Feels like you understand the technical things a little better. I love this stuff.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153