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 7,001-7,010 of 11,986 reviews
Aug 16, 2025
Reviewer name: catherinece25c_2292
5 out of 5 stars
5 out of 5 stars review

Helps keep you focus, energized and productive

[This review was collected as part of a promotion.] I finally got it!! So ever since I got them I could notice that they helped me focus more and my alertness and memory improved so much. I love the fact that they helped tremendously with my energy as well as making me more productive at home and at the gym.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 21, 2025
Reviewer name: johna04_4270
4 out of 5 stars
4 out of 5 stars review

supports various cognitive functions

[This review was collected as part of a promotion.] Onnit Alpha Brain Daily Cognitive Support is a great choice for those seeking a non-caffeinated way to enhance mental performance. Its blend of ingredients is designed to support various cognitive functions. I've noticed positive effects on focus, memory, and mental clarity. However, it's crucial to follow dosage instructions

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 1, 2025
Reviewer name: danielles34_8965
5 out of 5 stars
5 out of 5 stars review

Really helps with focus!

[This review was collected as part of a promotion.] This Alpha Brain memory & focus dietary supplement packs a 2 capsule serving however they are easy to swallow. This supplement did not upset my stomach. After a week of use, I noticed improved mental clarity and focus. I've been able to tackle projects around both work and my home.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 24, 2025
Reviewer name: olechka2888_350
5 out of 5 stars
5 out of 5 stars review

Great for my health

[This review was collected as part of a promotion.] I’ve been trying Alpha Brain for a few days now and I’m genuinely impressed. I definitely notice a difference in my focus — I feel more clear-headed and less scattered, especially during busy workdays. The capsules are easy to take and don’t upset my stomach. There’s no weird aftertaste, which I really appreciate. The packaging looks sleek and professional, and it gives a premium feel right out of the box. I also think it’s a good value for a supplement that targets focus, memory, and reaction time all in one. Excited to keep using it and see continued results!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 15, 2025
Reviewer name: Rick
5 out of 5 stars
5 out of 5 stars review

Getting a new start

I purchased Alpha Brain 3 weeks ago for my less verbal Husban who is suffering from memory lost, I noticed this week he's beginning to recognize being home and names of the streets in our neighborhood. I CAN see more of an alertness just this fast.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 21, 2025
Reviewer name: pnae_7646
3 out of 5 stars
3 out of 5 stars review

It’s ok

[This review was collected as part of a promotion.] The alpha brain by onnit is ok. I don’t really see a difference in focus or memory but the verdict is still out the longer I take them to see its effectiveness. The container is small and the capsules are consumable and easy to digest. There isn’t a taste or lingering taste so that’s a plus.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 10, 2024
Reviewer name: stephshep529
5 out of 5 stars
5 out of 5 stars review

Helps with brain function

[This review was collected as part of a promotion.] This supplement helps, increase and support focus, memory function, and your reaction time. It has a unique blend of different vitamins and minerals to help support all of these functions and more. The pills are easy to ingest and notably significant in brain function. 

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
Aug 22, 2024
Reviewer name: mariaolmos97
5 out of 5 stars
5 out of 5 stars review

Great

[This review was collected as part of a promotion.] Got this for my husband and he said that he really liked them. There were no bad side effects which is good. And they are effective! He said that he will buy when finished for sure and affordavle product.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 18, 2025
Reviewer name: leynat4_4674
5 out of 5 stars
5 out of 5 stars review

I guest it works

[This review was collected as part of a promotion.] I've been using Alpha Brain (30 count) consistently for a few weeks now. What I noticed most was improved mental clarity, especially during mid-day slumps or when I was multitasking. It's subtle—no jitters, no crash, just a cleaner, more alert mindset.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153