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 4,581-4,590 of 11,986 reviews
Aug 15, 2024
Reviewer name: destineyw2
3 out of 5 stars
3 out of 5 stars review

Clarity

[This review was collected as part of a promotion.] Alpha Brain does work. It gave me focus and clarity for the day. There isn't any harsh ingredients either. It's a bit on the pricey side for a supplement but in the same range as everything else. I wouldn't recommend as an everyday use because of side effects that can occur. Talk to your doctor before taking any supplements.

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

Thanks for taking the time to share your experience! Please let feel free to reach out ot our customer service team if there is anything we can assist with!

Mar 31, 2025
Reviewer name: itsdanthanh_3494
4 out of 5 stars
4 out of 5 stars review

A decent supplement

[This review was collected as part of a promotion.] I decided to try Onnit Alpha BRAIN after hearing so much about it. I do feel a slight improvement in focus and mental clarity, especially on days when I’m juggling a lot. It doesn’t feel like a jittery caffeine boost, but more of a steady alertness. The effects are subtle—kind of like having a really good night’s sleep rather than a big burst of energy. I didn’t notice a drastic change, and I think results may vary depending on the person. The capsules are easy to take. It’s a bit pricey, so I’m still debating whether it’s worth repurchasing. If you’re looking for a natural nootropic to experiment with, it might be worth trying, but I wouldn’t expect mind-blowing results overnight.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 15, 2024
Reviewer name: Rachel
5 out of 5 stars
5 out of 5 stars review

Mindful Military Spouse

[This review was collected as part of a promotion.] I have been using Alpha Brain for around 2 years. It’s a part of my daily routine of focus in keeping my household operating at optimum levels, especially while my husband is deployed. Thanks for the added focus and brainpower!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 6, 2025
Reviewer name: stephanieb507_5964
4 out of 5 stars
4 out of 5 stars review

Alpha Brain

[This review was collected as part of a promotion.] The Alpha Brain supplement was an interesting experience. It feels like it does help with focus without having caffeine. It doesn’t have a taste or smell. I felt energetic while taking it and found that it helped with my memory.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 15, 2025
Reviewer name: tatums7_19
5 out of 5 stars
5 out of 5 stars review

Surprising results!

[This review was collected as part of a promotion.] These really impacted the way I focus and go about my day. As a college student who is trying to balance all other aspects of my life, I constantly have a bad memory and poor focus, so I was skeptical that these would help in any sort of way. But let me tell you- they worked! I felt more present in my everyday life, and felt like I was on the ball. These also gave me quite vivid dreams every night while taking these, which is not something that happens to me a lot. I love that they are caffeine free, so I can still enjoy my daily cup of espresso without worry. They have no bad taste, and are easy to swallow. They are a bit pricey because this bottle is only a 15 day supply, but they worked for me. So if you are mildly concerned about your focus and memory, and have the funds to try these out, I would recommend!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 21, 2024
Reviewer name: jennifers991f_4499
2 out of 5 stars
2 out of 5 stars review

Alpha Brain

[This review was collected as part of a promotion.] My boyfriend has trying these pills for a few weeks and his review on these pills is ok. He thinks that it really didn’t do much of what’s advertised on the bottle. It made him feel kinda jittery and wasn’t sure if the little focus he did have was just a placebo effect.

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

Thanks for leaving us a review about your experience with Alpha Brain! We’re bummed to hear that you didn’t have the experience that you expected while taking this product. We all respond to supplements differently, not only in how they affect us but how quickly they affect us. We definitely recommend taking the product at the recommended dose for a solid two weeks before deciding whether or not it’s working for you. After that time, if you’re still not feeling it, please feel free to reach out to us directly for further assistance.

Mar 27, 2025
Reviewer name: genny47_1835
5 out of 5 stars
5 out of 5 stars review

I like it

[This review was collected as part of a promotion.] I’ve taken this item a few days and do feel more “On It” when I take this item. It’s aptly named! I feel alert but not amped up like after I have my coffee. I would recommend this item to a friend.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 25, 2025
Reviewer name: yourstrulylexii_2034
5 out of 5 stars
5 out of 5 stars review

Should definitely take with food

[This review was collected as part of a promotion.] I notice I didn’t need to drink energy drink while using this product the amount of focus I had and alertness was a nice change. Very nice packaging I must say eye catching. Taste isn’t too bad like other ones either.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Dec 28, 2024
Reviewer name: Katoom
4 out of 5 stars
4 out of 5 stars review

Fancy, worthless bottle infuriates me. Excellent

This is the only mental focus supplement I have ever taken that I was positive I could tell a difference. I feel more focused, and I am driven to finish tasks. Please put it in a simple bottle and cut the cost. The cost is making me consider discontinuing usage.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 19, 2025
Reviewer name: anp17_195
4 out of 5 stars
4 out of 5 stars review

May need longer use to give better feedback

[This review was collected as part of a promotion.] I did feel my focus was increased after few days but did not feel my memory sharper. The pills are easy to swallow and do not taste bad. I did not have any adverse effects from this. I will try at least one more bottle to tell if this works !

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153