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 491-500 of 11,986 reviews
Mar 9, 2019
Reviewer name: Bigpapa325
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Works Miracles

I bought this product and I was a bit skeptical on how good it would actually work. I’ve always had trouble remembering things and an even harder time trying to focus on my studies but I kid you not this product has made me a whole new person! Now I can remember my a** off and study without any problem. Besides irresponsibility..

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Nov 28, 2021
Reviewer name: Garth B
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Idk... just my take I guess.

I'm not quite sure what to think about Alpha Brain just yet. I can feel "Something" happening. I think. But I'm using enough pre-workout and taking enough vitamins to make a race horse illegal at the tracks, soo... idk. I may have to reevaluate at a later date. I want to Luke it. I think it is have SOME sort of effect. But very subtle to me. I only bought this stuff because of the "Joe Rogan" endorsement. I DON'T think it's worth the price tag however. I can think of several cheaper and more effective paths to the same cognitive effect. But maybe some people aren't trying to take pre-workout or hack their own biology. Idk... just my take I guess.

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

Thanks for giving Alpha Brain a shot and for sharing your experience! Everyone can respond differently to a formula like this, and we're happy to help with some supplement tips and/or to help facilitate a return. Please email Help@Onnit.com for further assistance with your order!

Feb 22, 2024
Reviewer name: Fijiguy
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Weird reaction

I bought this for my wife thinking it would help her. She has been struggling a bit with mental clarity and forgetfulness. She took one pill and later that day was throwing up and had diarrhea. Needless to say. She’s not taking this anymore. Point is everyone reacts differently so do your due diligence and try the product in a safe environment.

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

Thank you for sharing your experience with this formula, we’re sorry to hear that it wasn’t a positive one! Everyone's experience with supplementation is unique to them, and we would like to learn more about yours. You will be contacted by someone on our Customer Service team shortly so we can support you directly in this matter.

Aug 9, 2020
Reviewer name: John Sellers
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

A-brain Doing the lords work

Taking 2 of these got rid of my 3pm grogginess. Instead of pounding coffee throughout the day these just keep me sharp. Feels like my brain is working at 100% till I hit my bed at night. A bit pricey is the only complaint and keeping me from putting it on a subscription. Good stuff regardless

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 26, 2020
Reviewer name: Jflinch
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Consistent

I feel like it may be exaggerated a tad bit but I do feel more focused after every serving. The feeling is more consistent than all the nootropics I’ve taken. I get more creative thoughts while I’m reading and have better comprehension and I get less distracted while working. I’m a forever buyer.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 14, 2023
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

improved memory and sharpness

I gave it to my dad because at his age he has started forgetting alot and asking me the same questions multiple times a day. and i really feel like it's helped him a lot. he feels more confident and has shown signs of sharpness and better memory! I also bought one to try myself!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Oct 4, 2025
Reviewer name: laurenantoinette_7681
4 out of 5 stars
4 out of 5 stars review

I like it!

[This review was collected as part of a promotion.] I'm pretty skeptical about supplements that claim to help with focus and memory because I've tried several that didn't seem to help much. I've tried this product for awhile and was impressed with the results. I've always been scatter brained but this supplement really helps me stay focused and it made doing my job easier. I would definitely consider buying this again.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Nov 9, 2020
Reviewer name: F Healy
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Good but worth it ???

I felt a real change from day one and for the first 7-10 days I could but after that I am not really sure. I would like to try this product for a long time period and make a better decision but at the price of a full bottle I cannot justify the purchase at this time

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 21, 2021
Reviewer name: Austin Koziol
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great for both work and music

Alpha brain helps me be more productive and focused at work without all the negative affects of other stimulants. But I think it’s even more helpful when I’m playing shows. I’m able to be more present and feel in a flow state with alpha brain. Highly recommended.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Oct 23, 2023
Reviewer name: Stephanie
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Sicker than a dog

Definitely not for everyone. I was so sick about 2 hours after taking Alpha Brain. I missed my daughter’s homecoming because I was throwing up and so sick for about 12 hours. Then I was so tired for the next day because of throwing up so much. I threw the rest away.

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

Thank you for sharing your experience with this formula, we’re sorry to hear that it wasn’t a positive one! Everyone's experience with supplementation is unique to them, and we would like to learn more about yours. You will be contacted by someone on our Customer Service team shortly so we can support you directly in this matter.