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 6,361-6,370 of 11,986 reviews
Jul 4, 2025
Reviewer name: phineaso_220
1 out of 5 stars
1 out of 5 stars review

Avoid at all costs.

[This review was collected as part of a promotion.] This product is awful. Don't let the attractive packaging and false promises fool you. It made me sick and didn't do anything that it advertised. Even it's blend looks like garbage compared to similar products.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Oct 15, 2023
Reviewer name: Delve
5 out of 5 stars
5 out of 5 stars review

Worth it

Honestly, this product hits the mark. My focus, memory recall, attention span, and overall task orientation becomes clear when I'm using it for prolonged durations. I'd say after about a month this supplement truly saturates and that's when you can notice the difference.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 21, 2024
Reviewer name: aminataf1
5 out of 5 stars
5 out of 5 stars review

Well packaged ..

[This review was collected as part of a promotion.] Let me start by saying I love this product it came so well packaged there is no bad after taste you get the the ingredients listed are good for you my body can already feel so much better and for the money you doing a great favor to your body..buy it you need this

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 12, 2025
Reviewer name: jessq_5233
3 out of 5 stars
3 out of 5 stars review

Give time for them to take effect.

[This review was collected as part of a promotion.] I’ve gotten to test these Onnit supplements that are to help focus, support better memory and just help give a little extra boost. I will say, I believe that I’m still in the process of my body getting used to the tablet and it does seem to help with the memory fog a bit so I will continue to take them and update after a few more weeks. Ingredient wise, it seems that the tablets are packed with a lot of good vitamins. I would take precautions if you’re already taking supplements (just not to get some vitamins way above the threshold) but no nasty taste and pretty easy to swallow.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 5, 2025
Reviewer name: jtorres1_6172
3 out of 5 stars
3 out of 5 stars review

Good ingredients

[This review was collected as part of a promotion.] I like that this product has all very good ingredients. I love its claim to help memory and focus. The product that I received only had two weeks worth of the sample. I don't feel that 2 weeks is enough time to tell if this product helped me or not. I did not feel a difference in the two weeks time of use. Most products you have to have in your system for at least a month to notice change.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 22, 2025
Reviewer name: Anonymous
3 out of 5 stars
3 out of 5 stars review

Improves Performance - must take with a heavy meal

[This review was collected as part of a promotion.] The AlphaBrain vitamins are small and easy to use. I would recommend taking these with a heavy meal, as not doing so made me quite sick. The product did work for me and gave a boost I needed throughout the work day.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Nov 19, 2017
Reviewer name: MatthewJB
5 out of 5 stars
5 out of 5 stars review

Adds an extra kick in Medical School

I've been using Alpha Brain throughout my undergrad career, and now continue to use it in Medical School. However, I have never fully appreciated the benefits until recently, due to the rigorous demands. With my brain/mental capacities stretched to the limit every day, Alpha Brain gives me, what feels like, an extra 10% to be able to push through all my studies.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jan 14, 2024
Reviewer name: Andre
5 out of 5 stars
5 out of 5 stars review

Mind blowingly effective

The first 3 days, I felt a little more energy. Day 4, I experienced a significant increase in my energy and focus and it helped my mood a great deal. I take the weekend off and operate from a different stratosphere during the week while I’m on it. I couldn’t recommend this product more.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 30, 2024
Reviewer name: christinem25
4 out of 5 stars
4 out of 5 stars review

Seems to work!

[This review was collected as part of a promotion.] I’ve taken this product for about a week and have noticed that I am slightly more alert. The pills are tasteless and easy to swallow. I do wonder if it’s a product that can take as-needed… I couldn’t tell from what I read on Onnit website. I do like the ingredients and that there is no caffeine that can cause jitteriness. Since this product is moderately priced, it’s worth it!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 22, 2024
Reviewer name: backyardshopjedi
4 out of 5 stars
4 out of 5 stars review

I enjoyed this a lot!!

[This review was collected as part of a promotion.] The package was very clear about what you’re taking. The taste was good. I enjoyed the effectiveness of the product and all the quality ingredients. I also thought this was a great value for my money!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153