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 4,911-4,920 of 11,986 reviews
Mar 26, 2025
Reviewer name: hotstar16_5306
4 out of 5 stars
4 out of 5 stars review

Works as intended

[This review was collected as part of a promotion.] Onnit is quite the clever name for a product that you take to feel “on.” I did notice an improvement in focus after taking one. I’m afraid to take the recommended dosage of two, just because I’m afraid of how my body will react.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 22, 2025
Reviewer name: honeytoofly87_9658
4 out of 5 stars
4 out of 5 stars review

They work

[This review was collected as part of a promotion.] I love a good vitamin for sure these do work at first they made me feel a bit funny when I took two but then I started to take one at a time it was fine they give u energy make me feel more focused I all so do feel fuller from take them I feel like I’m not so distracted when I take them over all they are really good vitamins I just don’t like how big they are that it

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 20, 2025
Reviewer name: hollych987_4148
5 out of 5 stars
5 out of 5 stars review

Sharper Focus, Clearer Mind – Game-Changer!

[This review was collected as part of a promotion.] I’ve tried a few nootropics before, but Onnit Alpha BRAIN® truly stands out. Within the first week, I noticed a huge difference in my focus, memory, and mental clarity—especially during long work sessions and multitasking days. No jitters, no crashes—just smooth, sustained brain power. I feel more productive and even more articulate in conversations. It’s become part of my daily routine, and I honestly don’t want to go without it. If you’re looking for that extra mental edge, this is it. Highly recommend!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 7, 2025
Reviewer name: kkme1_7127
5 out of 5 stars
5 out of 5 stars review

Just what I needed!

[This review was collected as part of a promotion.] As I am getting older, I am finding I need all the help with focus and memory as possible. These are easy to swallow capsules with no funky aftertaste. I just hope they help me to remember to take them daily.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 3, 2025
Reviewer name: suzieqtie_7771
4 out of 5 stars
4 out of 5 stars review

Keeps mind clear and sharp

[This review was collected as part of a promotion.] I find when I take these pills in the morning, especially after an arduous night, my mind is clearer and it is easier to wake up. I also find I am not as tired throughout the day and I feel more confident.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 26, 2025
Reviewer name: kourtneyk3_1755
5 out of 5 stars
5 out of 5 stars review

Wow!

[This review was collected as part of a promotion.] I received this product complementary for review. I really enjoyed these. I'm always skeptical of products like this but to my amazment these kept me focused all day!! I was able to accomplish so much more than usual. The pills are on the larger side but not unbearable. I highly recommend!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 5, 2025
Reviewer name: sundusf1_2587
4 out of 5 stars
4 out of 5 stars review

Solid Ingredients

[This review was collected as part of a promotion.] This product is made out of some harmless ingredients which is why I felt confident trying them out. I can’t say that they really made me feel any different than I usually do. I did feel like I felt a little more energized through the day.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 8, 2025
Reviewer name: benw10_7777
5 out of 5 stars
5 out of 5 stars review

An excellent choice for memory and focus!

[This review was collected as part of a promotion.] Packaging is bold and stands out. No taste and capsules are easy to swallow. I love that the formula is caffeine free. This allows for more flexibility on how late in rhe day I can take this supplement.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 15, 2024
Reviewer name: samanthad520
4 out of 5 stars
4 out of 5 stars review

Very happy

[This review was collected as part of a promotion.] I’ve been using Onnit Alpha Brain for a while now, and I’ve noticed a real improvement in my focus and mental clarity. Tasks that used to feel overwhelming are now easier to manage, and I find myself more productive throughout the day. The effects aren’t like a jolt of energy but more of a smooth, consistent mental sharpness. While it’s not a magic pill, it has definitely made a difference in how I approach my work and daily challenges. That said, everyone is different, so results may vary. Overall, I’m happy with the experience.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 31, 2025
Reviewer name: bridgettelm_3072
5 out of 5 stars
5 out of 5 stars review

Excited to try

[This review was collected as part of a promotion.] Honestly, very scared to try it, but I’m glad I got the free sample. I think that it’s cool that it is somewhat natural and yet a cool way to really focus instead of taking something like prescribed.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153