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 4,721-4,730 of 11,986 reviews
Oct 11, 2023
Reviewer name: Daniel
5 out of 5 stars
5 out of 5 stars review

Super focused!

As a small business owner I found this combination to be quite effective. The notices were subtle and you don’t feel like you took anything, you just begin to notice that you work better, plan better and do better. I started with the seven day trial, and can’t believe I am just now finding out about this product! My only regret is not finding out about them sooner.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 15, 2024
Reviewer name: azairiastar
5 out of 5 stars
5 out of 5 stars review

Brain power

[This review was collected as part of a promotion.] I did receive this free from influenster from my honest review, it's a great value for money and the ingredients are specifically for your brain neurology I love it anything to keep me focused there's a win-win for me

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

Only Subscription I Have

[This review was collected as part of a promotion.] If you’re trying to stay on your A game, then you need support. Alpha Brain has been that for me. It’s helped be to choose focus and choose more productive habits that have allowed me to grow my business. Always looking forward to the next bottle.

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

Great supplement

[This review was collected as part of a promotion.] This supplement is great to take daily for a clearer mind and just overall better health. I recommend taking this at the start of your day. I would definitely be buying more of this when I run out! :)

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 21, 2025
Reviewer name: mejpye_5281
5 out of 5 stars
5 out of 5 stars review

Working well for me

[This review was collected as part of a promotion.] I really like Alpha Brain nutritional supplement from Onnit. The bottle is easy to open. The capsules are an average size which is easy for me to swallow. I have not experienced any stomach upset or otherwise negative effects from taking this supplement. I really like that this formula does not rely on caffeine to achieve the desired results. I like the results I am experiencing from this supplement. It has worked well for me.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 9, 2024
Reviewer name: kellyba28b
3 out of 5 stars
3 out of 5 stars review

Subtle difference?

[This review was collected as part of a promotion.] I love the idea of Alpha Brain. I love the ingredients, and feel some subtle boost in attention and productivity. It's hard to discern if I'm experiencing a placebo effect or if this is making a big difference. I will continue using this product.

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

Thanks for leaving us 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 this product. We all respond to supplements differently, not only in how they affect us but how quickly they affect us. We definitely recommend taking the product at the recommended dose for a solid two weeks before deciding whether or not it’s working for you. After that time, if you’re still not feeling it, please feel free to reach out to us directly for further assistance.

Dec 11, 2016
Reviewer name: Andrewavenue
5 out of 5 stars
5 out of 5 stars review

Does exactly what they say!

I'm a father of three and small business owner. Mentally I'm always being pulled in multiple directions at one time. Alpha brain helps a lot! Mostly I feel like I'm well rested when I'm not, my vision is great. I'm just mentally quick with this product no matter what's happening.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 16, 2024
Reviewer name: kybunnyxo
3 out of 5 stars
3 out of 5 stars review

Avoid this

[This review was collected as part of a promotion.] This product is honestly not very good, I think this is a reach to clean up past reviews and even a lawsuit claiming it doesn’t work. Which I would have to agree with. Someone else I shared with got a headache and 0 benefits that it claims.

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

Thanks for taking the time to share your experience! We're sorry to hear that Alpha Brain wasn't the right fit for you. It's expected that we have a range of responses since supplementation is not one size fits all. Sometimes it can take a few tries to notice these effects. Experimentation is key! That being said, we would never want you to feel stuck with a product that didn't meet your expectations, and if you reach out to our Customer Service team, they'd be happy to help further!

Aug 17, 2024
Reviewer name: corinnem21
1 out of 5 stars
1 out of 5 stars review

Alpha brain

[This review was collected as part of a promotion.] Alpha brain capsules made me a little nauseous and upset my stomach so I wasn’t able to get the full effect unfortunately. I wasn’t able to use it more than that one day but it may work better for others.

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.

Jun 26, 2025
Reviewer name: vladislava_6024
5 out of 5 stars
5 out of 5 stars review

Now I'm going to use it.

[This review was collected as part of a promotion.] I really like this supplement. Great ingredients help me focus and improve my brain function. It tastes neutral. The packaging is very convenient. The only downside is that the pills are a little too big.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153