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 4,511-4,520 of 11,986 reviews
Aug 16, 2024
Reviewer name: kcwhite86_4403
5 out of 5 stars
5 out of 5 stars review

Surprisingly effective

[This review was collected as part of a promotion.] I’ve been taking these once a day (typically in the morning with a yogurt) before work and have definitely noticed a difference in my daily alertness. I will admit I was skeptical about trying a product like this for the first time but am seeing the impact and will be incorporating into my daily routine.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 30, 2025
Reviewer name: evanessancet_4884
3 out of 5 stars
3 out of 5 stars review

Ehhh

[This review was collected as part of a promotion.] I started with one tablet as recommended before increasing to a whole serving. I appreciate that the tablets are a pretty standard size so not difficult to swallow but made me a little queasy. Overall, I did not discern a notable difference.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 9, 2024
Reviewer name: jacquiebabi73
5 out of 5 stars
5 out of 5 stars review

Liking so far

[This review was collected as part of a promotion.] Love trying new vitamins love that these didn’t have a bad taste and they weren’t hard to swallow. These I have found have helped me think more quickly and stay focused on the task at hand. I plan to continue use and reap the benefits.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 30, 2025
Reviewer name: sofiyac_3310
5 out of 5 stars
5 out of 5 stars review

Onnit Alpha Brain

[This review was collected as part of a promotion.] I’ve been using Onnit Alpha Brain for a few weeks and have noticed a slight improvement in my focus and mental clarity, especially during work and reading. I like that it’s caffeine-free, so I don’t get jittery, and it’s easy to incorporate into my routine. That said, the effects aren’t dramatic, and results seem to vary from person to person. It’s worth trying if you’re looking for a mild cognitive boost, but manage your expectations.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 29, 2024
Reviewer name: yasa8
4 out of 5 stars
4 out of 5 stars review

Good supplement

[This review was collected as part of a promotion.] I noticed an improvement in my focus and mental clarity within a few days of use. The blend of ingredients, like Bacopa Monnieri and L-Theanine, seemed to help with my concentration and memory recall, especially during work and creative tasks. I didn't experience any jitteriness or crashes, which is a big plus for me. However, it's a bit on the pricey side, and the effects can vary from person to person.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 12, 2025
Reviewer name: allysonc1_7596
5 out of 5 stars
5 out of 5 stars review

Great supplement for boosting memory and focus!

[This review was collected as part of a promotion.] Thank you @influenster and @onnit for sending me this free sample of Alpha Brain Memory & Focus supplement. As a busy mom, I have a lot to remember and stay on top of! after two weeks of taking this product, I have found that I feel more alert and focused. I love that this product does not contain caffeine, so there’s no energy crash. This is a product that I would recommend to anyone looking to improve their memory and focus in addition to sustained attention.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 21, 2025
Reviewer name: timurr_9936
2 out of 5 stars
2 out of 5 stars review

Inaccurate Ingredients

[This review was collected as part of a promotion.] I haven’t found any good ingredients in them and there is no exact dosage, it’s not specified exactly how much of each substance I read the reviews, there are pros and cons, but I didn’t drink it, I didn’t risk it and try it. That’s why I’ll skip it

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

Thanks for your feedback — we appreciate you taking the time to share your thoughts. We understand that transparency and clarity around ingredients are important when choosing a supplement. All of our products are formulated with quality and efficacy in mind, and while some blends use proprietary formulas, they’re designed to meet safety standards and support the product’s intended benefits. That said, we respect your decision and hope you'll consider us again in the future if your needs or preferences change. -- Kristen ONNIT Customer Service Associate #getonnit

Jun 28, 2025
Reviewer name: 40_skincare_beauty_648
3 out of 5 stars
3 out of 5 stars review

Alpha Brain Review

[This review was collected as part of a promotion.] Alpha Brain is a nootropic supplement designed to support cognitive functions such as focus, memory, and mental clarity. The capsules are easy to take, and I appreciated the simple instructions for use. I noticed a subtle improvement in mental sharpness during daily tasks, particularly with focus. However, the effects weren’t dramatic, and it may work differently depending on individual responses. One positive is that it didn’t cause jitters or other side effects for me, which is a plus compared to some alternatives. Overall, Alpha Brain is worth trying if you’re looking for a gentle boost in cognitive function, though the results may vary.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 2, 2024
Reviewer name: miki28
5 out of 5 stars
5 out of 5 stars review

Pretty good

[This review was collected as part of a promotion.] This actually works. Whatever is in this really helps my busy brain focus. I might actually go get it from a store because it works. It looks and taste like regular supplements so no comments about that.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 14, 2024
Reviewer name: emilyg137_7049
5 out of 5 stars
5 out of 5 stars review

Brain. Focus

[This review was collected as part of a promotion.] This product is very clever. I’m definitely a person that needs help focusing as I have three children that pull me three different way ways. They taste like prenatal to me which is fine. The packaging is pretty cool. A great product. 8/10

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153