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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)

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Showing 4,541-4,550 of 11,986 reviews
Sep 13, 2024
Reviewer name: michaelbridgesjr
5 out of 5 stars
5 out of 5 stars review

Surprised me but works!

[This review was collected as part of a promotion.] The ingredients are decent and it really seems to hold it’s weight in gold. I’ve been taking them for about 24 days now and my overall memory and able to concentrate has increased. I really do enjoy these pills and I feel as if I’m going to continue taking them. I highly recommend this for anyone who has a hard time keeping their focus. 

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Feb 6, 2024
Reviewer name: Phil
1 out of 5 stars
1 out of 5 stars review

Garbage

If you don’t want your money then buy this stupid can on nonsense, I don’t know what “in the zone” feeling these snake-oil salesmen had me believing I was suppose to to feel because I just have a pounding migraine with the worst stomach cramps. Myself and a colleague have gone home from work early because of this stupid pill.

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

Thank you for sharing your experience with this formula, we’re sorry to hear that it wasn’t a positive one! Everyone's experience with supplementation is unique to them, and we would like to learn more about yours. You will be contacted by someone on our Customer Service team shortly so we can support you directly in this matter.

Jun 25, 2025
Reviewer name: hungq_7910
4 out of 5 stars
4 out of 5 stars review

Effective but pricey

[This review was collected as part of a promotion.] After taking this supplement, I can see an improvement in focus The capsule is easy to swallow. I always have a meal before taking this capsule It is pricey than I expected Overall, it is effective but a bit expensive

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 14, 2017
Reviewer name: Zking86
1 out of 5 stars
1 out of 5 stars review

No difference

I work 14hrs to 16+hrs a day for 14 days straight. I tried this for two months hoping it would help increase my focus during those long hours. I experienced no improvement during those couple months. I'mback to the reliable excessive amount of caffeine to keep me going.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 20, 2024
Reviewer name: lilym126
5 out of 5 stars
5 out of 5 stars review

A must if you want more energy and memory back

[This review was collected as part of a promotion.] I am someone who likes to take vitamins that actual help me. With these vitamins I feel like I have more energy but also remember more than what I used to. It doesn’t taste like anything which make it easier for me to take them. Love that it comes in a capsule which is easier to swallow and also has amazing ingredients. You do get a lot in one bottle which will last a full month.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 22, 2024
Reviewer name: meowmariah
4 out of 5 stars
4 out of 5 stars review

Improved clarity, focus, and reaction time

[This review was collected as part of a promotion.] I received this product free in exchange for my honest review. This product helps support focus, memory, and reaction time. It assists mental clarity and promote flow state. If you need help improving cognitive function, I can say that this product has been effective so far.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 24, 2025
Reviewer name: sunshinechillvibes2_7869
2 out of 5 stars
2 out of 5 stars review

Didn't Work For Me

[This review was collected as part of a promotion.] I tried using this about 10 (ten) days ago. I have always struggled with focus and concentration. I also have difficulty with my memory at times. I was very excited to try this product. Unfortunately I did not notice any change or difference in my focus, concentration or memory. I did not notice any cognitive changes. This product did not work for me.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 9, 2016
Reviewer name: JPMACD
4 out of 5 stars
4 out of 5 stars review

Impactful with consistant and continued use, BUT..

Alpha Brain works well to enhance focus and I noticed increase productivity at work in the 1 year since starting to take it. It can produce vivid dreams depending on the person and how/then it's taken. The largest drawback I've noticed is that is does effect your normal sleep cycle. When I stopped taking it for a period of a couple weeks after running out and waiting for a backorder, I noticed increasingly poor sleep quality and restlessness at night starting a few days after not having it. I'm not wild about anything that can alter my natural sleep state like that. As far as memory and focus are concerned though, it does work well.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 13, 2025
Reviewer name: theabsoluteinfluenc_1199
5 out of 5 stars
5 out of 5 stars review

Caffeine-free

[This review was collected as part of a promotion.] Tried Alpha BRAIN for the first time and I can see why it’s so popular. It’s caffeine-free, which I love since I’m sensitive to stimulants, but it still gives a subtle mental clarity and focus boost. I’ve felt more dialed in while working without the jitters or crash. It’s only been a few days, so I’m curious to see how it performs long-term, but so far, it’s a solid start!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 27, 2024
Reviewer name: reide
5 out of 5 stars
5 out of 5 stars review

great

[This review was collected as part of a promotion.] This supplement is rather interesting, I have been trying it out for some weeks now. Flavor is fine, I am waiting to see the effectiveness, good packaging, pretty good value for money. The ingredients seems to be useful so far.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153