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 6,271-6,280 of 11,986 reviews
Jul 16, 2025
Reviewer name: sadiasha_9656
4 out of 5 stars
4 out of 5 stars review

alpha brain

[This review was collected as part of a promotion.] I tried brain alpha. Alpha Brain provided mild focus and memory boosts for me, but results varied. A few experienced better mental clarity, while others noticed little to no change. Overall, it's a decent supplement, but not a game-changer—especially for the price.

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

My memory and focus have noticeably improved

[This review was collected as part of a promotion.] has become a staple in my daily routine. Whether I’m studying or working on a new project, it helps me stay sharp and focused. I love that it’s caffeine-free, so I don’t have to worry about crashing later. With over 7.5 million bottles sold, there’s a reason this product is so popular

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 24, 2016
Reviewer name: RGJetta
5 out of 5 stars
5 out of 5 stars review

Why Did The Recommended Dose - Alpha Brain Change?

I used to take Alpha Brain in the past and started taking it again for the great benefits. The recommended dosage used to be "Not to exceed more than 4 capsules a day." I just reordered it again and now it says "Not to take more than 3 capsules within a 24 hour period." Why the change? Can I still take the 4 capsules a day?

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 19, 2024
Reviewer name: kristinh73
5 out of 5 stars
5 out of 5 stars review

Work great

[This review was collected as part of a promotion.] I love these they make me feel like I can actually focus especially being so exhausted lately and busy. This actually helps I've added them to my vitamins in the morning. The quality is fantastic and the packaging is great as well definitely a great choice

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 22, 2025
Reviewer name: kristino22_8297
5 out of 5 stars
5 out of 5 stars review

Highly recommend!

[This review was collected as part of a promotion.] This Alpha Brain memory & focus supplement is amazing! Most days, my brain seems to”foggy” & I find it hard to focus most of the time. Since I’ve started taking this supplement, I haven’t had that problem. I could tell a difference the 1st day! I also LOVE the fact that it is caffeine free because I am sensitive to caffeine & cannot drink it. It’s nice to find something that’s stimulant free and also does what it claims to do. Highly recommend if you suffer from memory or focusing problems.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 25, 2025
Reviewer name: karen551_2029
5 out of 5 stars
5 out of 5 stars review

Game changer

[This review was collected as part of a promotion.] Alpha BRAIN by Onnit has been a game-changer for my focus and mental clarity during long workdays. I’ve noticed a real improvement in my memory retention and quicker reaction times, especially when multitasking. It’s a clean, non-jittery supplement that keeps my mind sharp without the crash.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 23, 2025
Reviewer name: olgas183_2557
5 out of 5 stars
5 out of 5 stars review

Solid product

[This review was collected as part of a promotion.] I’ve noticed better focus and mental clarity without the jittery feeling. The capsules go down easy, no weird aftertaste. Packaging is clean and sturdy. It’s a bit pricey, but worth it if you’re looking for real cognitive support with high quality ingredients.

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
Oct 9, 2024
Reviewer name: Normy
5 out of 5 stars
5 out of 5 stars review

Life Changer!!

Alpha Brain / New Mood / Total Human / Creatine have been a life changer for me! Focus & memory improved immeasurably with Alpha Brain, Superb mood and sleep with New Mood, All round health benefits with Total Human, Workouts & Recovery more powerful with Creatine. Cannot recommend these supplements more highly!! Thanks ONNIT & Joe Rogan :))

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 28, 2020
Reviewer name: Joe Sr
1 out of 5 stars
1 out of 5 stars review

Alpha Brain powder form, packets

I bought the Alpha-Brain in powder form, individualized packets of powder. The taste is absolutely hideous to the point of nausea. I believe it could be the sweetener used. The taste and sensation afterward seems toxic to me; just horrible. The capsule form is ok.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153