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 3,941-3,950 of 11,986 reviews
Jul 10, 2025
Reviewer name: yesir_1134
5 out of 5 stars
5 out of 5 stars review

Nice!

[This review was collected as part of a promotion.] These onnit Alpha Brain supplements come in some pretty slick packaging. They’re easy to take and don’t have a nasty after taste. They’re easy don’t smell. Overall pleased with the product. Waiting to see if they help with “mom brain”

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 22, 2025
Reviewer name: anam1077_7974
2 out of 5 stars
2 out of 5 stars review

Made me sick…

[This review was collected as part of a promotion.] [Incentivized] I was hoping to be honest about how well this supplement worked, but I was only able to take the recommended dose once and it didn’t go well at all. I felt really agitated at first, then weak, and finally, I was nauseous. I tried drinking a lot of water, but that didn’t help, and I ended up throwing up. I felt terrible for the rest of the day and the morning after. I waited to write this review because I had the hope that I could give them another try, but I was too scared of feeling that bad again. I don’t know if they work or not, my body just didn’t like them. Maybe I’m just too sensitive to one of the ingredients, I’m not sure which one, because I haven’t had a reaction like that before with any other supplement.

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. -- Cailee B. ONNIT Customer Service Associate #getonnit

Jul 17, 2025
Reviewer name: vienl_7759
5 out of 5 stars
5 out of 5 stars review

This Alpha Brain pill help me think more clear, mo

[This review was collected as part of a promotion.] I take Alpha Brain every morning before I go work, and it make my head feel more clear, like not foggy no more. I can focus better, do my job faster, and remember more things. Before I always forget small thing, now I remember easy. My brain feel more fast, like I can think quick and not get confuse. It help me lot when I need to do many thing in one time. I like this pill, it make me feel smart and not so tired in my mind.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 28, 2025
Reviewer name: octavianoe_947
5 out of 5 stars
5 out of 5 stars review

Focused Without the Jitters

[This review was collected as part of a promotion.] I was honestly skeptical at first, but Alpha BRAIN really surprised me. I take it on busy or mentally demanding days, and I’ve noticed a real difference in my focus and mental clarity—without that jittery or wired feeling you sometimes get with caffeine-based supplements. It’s subtle, but effective. I feel more dialed in and less mentally scattered. Definitely worth trying if you’re looking for a natural brain boost!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 12, 2024
Reviewer name: mk84271512
3 out of 5 stars
3 out of 5 stars review

Give it a shot

[This review was collected as part of a promotion.] I’m not sure how much it helps. Like all supplements I’m skeptical since there isn’t much research to back up their claims. I don’t think there is any harm in trying it for yourself to see if you benefit. There was not taste and the value will be subject to the individual if it works.

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

Thanks for giving Alpha Brain a chance and for sharing your experience! Everyone's experience can be a bit different with a formula like this. It's formulated to help support memory, focus, and processing speed, and it can take some regular use to really feel these changes. We suggest trying it for at least two weeks to give it a fair shot, in case that helps to know!

Apr 19, 2025
Reviewer name: ashleyrplumley_2193
5 out of 5 stars
5 out of 5 stars review

Works as it should

[This review was collected as part of a promotion.] I could definitely tell a difference with focus using these. They have little to no taste. Ingredients are spot on with helping with clarity and focus. Packaging is clear and upscale in appearance.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 1, 2025
Reviewer name: shantalm14_4262
1 out of 5 stars
1 out of 5 stars review

Didn’t work for me

[This review was collected as part of a promotion.] I was hopeful trying Alpha Brain after seeing the hype around it, but unfortunately it didn’t work for me. I took it consistently as directed, but I didn’t notice any improvements in focus, memory, or reaction time. It might work for some people, but I personally didn’t feel any difference. At this price point, I expected at least a mild cognitive boost. Everyone’s body responds differently, but I’ll be trying something else next time.

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

We appreciate your feedback after trying our Alpha Brain, although so sorry it wasn't a great fit 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 - and sometimes it can take time to notice these effects. Regardless, glad you tried it out! -- Cailee B. ONNIT Customer Service Associate #getonnit

Aug 21, 2024
Reviewer name: kikim47
2 out of 5 stars
2 out of 5 stars review

Did not work for me

[This review was collected as part of a promotion.] I was excited to try these supplements to help with my memory. I took two capsules in the morning along with a bagel since the label says a light meal. There was no taste when it went down which was good. I then went about my day and by midday I felt terribly sick. I was unable to do anything for the rest of the day. I did not take anymore since I was afraid of the same effects. This may work for some people but it did not work for me.

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 15, 2024
Reviewer name: girlygfabulous
5 out of 5 stars
5 out of 5 stars review

Great product

[This review was collected as part of a promotion.] Alpha Brain by Onnit is a nootropic supplement designed to enhance cognitive functions like memory, focus, and mental clarity. The key ingredients include bacopa, oat straw, and alpha-GPC, which are commonly associated with brain health. Many users report improved concentration and mental clarity, particularly during stressful or demanding tasks. However, effects can vary, with some experiencing noticeable benefits while others report minimal impact. It's worth noting that Alpha Brain is stimulant-free, making it a good option for those sensitive to caffeine. Overall, it's a well-regarded nootropic, though individual results may vary.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 27, 2024
Reviewer name: reide
5 out of 5 stars
5 out of 5 stars review

great

[This review was collected as part of a promotion.] This supplement is rather interesting, I have been trying it out for some weeks now. Flavor is fine, I am waiting to see the effectiveness, good packaging, pretty good value for money. The ingredients seems to be useful so far.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153