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 5,351-5,360 of 11,986 reviews
Jun 4, 2025
Reviewer name: chrisio91_854
5 out of 5 stars
5 out of 5 stars review

Easy to take no unpleasant side effects

[This review was collected as part of a promotion.] This alpha brain daily cognitive support supplements really help support memory and focus for me. I like that you only take 2 a day and it lasts all day. There are no bad side effects after I take them.

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

Works ok

[This review was collected as part of a promotion.] This actually was not so bad. The taste isn't butter at all. It didn't really have a taste to me. I felt more awake, but didn't really notice an effect on my focus and attention. We will see and keep trying!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 22, 2025
Reviewer name: khatijap_3308
4 out of 5 stars
4 out of 5 stars review

It works

[This review was collected as part of a promotion.] Alpha Brain gave me a noticeable boost in mental clarity during busy workdays. I felt more focused without the jittery edge that comes with caffeine. Memory recall seemed sharper, especially in meetings and problem-solving. It's not magic, but it’s a solid nootropic for productivity and flow.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 24, 2025
Reviewer name: sydneyt1202_1724
5 out of 5 stars
5 out of 5 stars review

Great supplement!

[This review was collected as part of a promotion.] This is a great product if you are looking for a supplement to help you focus more! I’m not gonna lie, the pills are a bit large, but if you can get past that, this supplement has helped me with focus and memory. I love the daily nootropic formula because it assists me with my mental clarity and helps me get in the zone to focus to increase my cognitive processing speed! Recommend!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 24, 2025
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Brain power

[This review was collected as part of a promotion.] This was a great sample to try for me and my son. I felt it was very effective for us both. The packaging was easy to open. The taste didn’t bother me at all. It has great ingredients for a great value.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 9, 2016
Reviewer name: DogsLikeChocolate
4 out of 5 stars
4 out of 5 stars review

Great product

I do love this product, it give me alot of energy that I did not expect which I like. Not sure how well my memory is but I just started. The one reason I didn't give five stars is when they sent me a month supply of the packets they didn't consult me on the flavor. I absolutely hate the natural spices flavor but I loved the other one they sent in their sample envelope.

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

A pretty decent supplement…

[This review was collected as part of a promotion.] This product is okay but it’s not something I would repurchase. Take note that this is definitely a product that requires consistency and probably 2-3 months to notice positive affects if this supplement will work for you. I’d definitely give it a try thigh! Random nite: Packaging- I don’t know what it is or why I feel this way but the packaging makes this hard to read and something that you’d get from a cheap store. Less is best!

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

Thanks for reaching out and leaving a review! So sorry to hear that Alpha Brain did not work for you. Because everyone reacts differently to supplementation it's not uncommon to have different experiences. Please note that this supplement's main focus is to help support memory, focus, and processing speed - sometimes it can take time to notice these effects. That being said, if you are ever dissatisfied with your order, you can always contact our Customer Service team for further assistance!

Mar 20, 2025
Reviewer name: pfrid7_2133
4 out of 5 stars
4 out of 5 stars review

Powerful, But Maybe Not for Evenings!

[This review was collected as part of a promotion.] I took one Alpha BRAIN capsule upon receiving it and had trouble sleeping that night. Maybe it’s best not to take it in the evening? Could be a coincidence, but it makes me excited about its potential effectiveness!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 27, 2025
Reviewer name: kingme_9196
4 out of 5 stars
4 out of 5 stars review

Alpha 🧠 on it

[This review was collected as part of a promotion.] I love this caffeine free supplement that helps promote mental clarity and flow state. It comes in a convenient little bottle that you could throw in a bag for travel and take to work or wherever with you. I haven’t noticed a huge difference but I did slightly notice that it helps support memory, focus, and cognitive processing speed. Unlike many other supplements, they don’t really have a taste. I think they’re worth purchasing.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 28, 2025
Reviewer name: paolas236_1699
5 out of 5 stars
5 out of 5 stars review

Great

[This review was collected as part of a promotion.] I got this because my memory in focus is sooo bad and it’s definitely helped with clarity. I’m sure after taking it for a longer period it’ll get even better but as of now it’s been great. I feel like the price is average based on other similar supplements. It doesn’t have any weird taste or aftertaste so it’s very easy to take .

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153