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 6,881-6,890 of 11,986 reviews
Jun 19, 2025
Reviewer name: yavyc_125
5 out of 5 stars
5 out of 5 stars review

I can’t believe it works!

[This review was collected as part of a promotion.] So I was a bit skeptical about trying this, because the first thing I did was do some research on what it was. And I came across pros and cons but i decided to give it a try. I’ve been taking it for the last four days and I can honestly say that I can feel a difference. I feel more alert and focused at work. My mood has been great. I do feel a difference with the supplement. I don’t know if this will work for everyone, but I can say from taking it the last four days. I have felt the difference. Overall, I recommend this product.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 31, 2024
Reviewer name: yuridiag9
5 out of 5 stars
5 out of 5 stars review

Brain boost!

[This review was collected as part of a promotion.] It actually works! These supplements came through and helped boost my brain power. They are a bit expensive but worth every penny. They come in easy to swallow capsules that you can’t taste. 100% recommend!!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 2, 2024
Reviewer name: isick
5 out of 5 stars
5 out of 5 stars review

Mental Clarity & Focus in a Capsule

[This review was collected as part of a promotion.] I've been using Onnit Alpha Brain for a few weeks, and the results are impressive. My focus and concentration have noticeably improved, making it easier to stay on task and get into a flow state. Memory recall has also been sharper, helping me remember details with ease. What I love most is the natural, sustained energy without any jitters or crashes. Plus, the fact that it's made with natural ingredients and is caffeine-free is a huge bonus. Alpha Brain has become a must-have in my daily routine—highly recommend it for anyone looking to boost their mental performance!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 20, 2025
Reviewer name: priyaalexanderrr_981
5 out of 5 stars
5 out of 5 stars review

Love

[This review was collected as part of a promotion.] The ONNIT brand is great, we love this supplement, we also love the probiotics. The value, packaging, ingredients are safe and effective! We would recommend this all of our friends if they want to increase focus in a natural way!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 30, 2025
Reviewer name: krissiaa_7676
5 out of 5 stars
5 out of 5 stars review

Good

[This review was collected as part of a promotion.] So far so good I really do feel more alert & I also feel like I dont struggle to fall asleep anymore. Good Ingredients for what I can see I also like that they dont necessarly have a taste. Wish the pills were a little smaller or even in gummy form.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 27, 2025
Reviewer name: paulinam135_9388
4 out of 5 stars
4 out of 5 stars review

Focusing on tasks ahead

[This review was collected as part of a promotion.] This product so far I've seen a difference with me focusing on certain tasks and finishing them before starting the next one. I had problems focusing on the task ahead and would do multiple things and the same time. This product definitely helped me a lot more with completing and taking my time. I'm still seeing the long term effects so I will continue to take and will give you more input in future. The taste is fine the ingredients is interesting! And it's not a huge bruise with your wallet.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 2, 2024
Reviewer name: claudiad70_5758
4 out of 5 stars
4 out of 5 stars review

Focus, Memory and Reaction Time

[This review was collected as part of a promotion.] Alpha Brain are daily supplements in pill form to help support memory, focus, and reaction time. These pills are a caffeine-free blend that provide nutrients that help create an environment to optimize cognitive function.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 8, 2025
Reviewer name: danetriad1_1611
1 out of 5 stars
1 out of 5 stars review

Nothing happened for me

[This review was collected as part of a promotion.] I wanted soo much to like this product. I actually waited to write this review to make sure I gave honest/detailed review. This supplement did absolutely nothing for me. I feel exactly the same. Actually, I experienced small spouts of headaches while taking these. There was no taste, no affect, no increase in focus, absolutely nothing positive happened.

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

Nov 17, 2022
Reviewer name: ALPHA DANE
5 out of 5 stars
5 out of 5 stars review

APLHA DREAMS, no more sleeping like a BETA

This stuff is amazing for focus in school and memory retention. I’ve been axing my classes since taking 2 daily in the mornings I have class.. but on a side note, when I take a nap after class my dreams have been ALPHA AF. The most vivid and wild and intense dreams ever and I love it.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 19, 2024
Reviewer name: ag318
2 out of 5 stars
2 out of 5 stars review

Didn’t work for me

[This review was collected as part of a promotion.] I received Alpha BRAIN for free in exchange for my honest review. The capsules were easy to swallow. However, this supplement didn’t really do anything as far as focus and memory. They actually made me feel nauseous if anything.

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.