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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 6,171-6,180 of 11,986 reviews
Jul 21, 2025
Reviewer name: deja_886
5 out of 5 stars
5 out of 5 stars review

Super focused

[This review was collected as part of a promotion.] These brain supplements came in so clutch. I’ve been wanting to focus more on time management and just making the most of my free time outside of work. I starting take these during the first half of my work day and it usually kicks in after 2-3 hrs (at least that’s when I start to tell) and usually gets me through the rest of the day. I generally feel more productive and alert. Definitely a good alternative to energy drinks for me.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 26, 2025
Reviewer name: lisaskelton459_3173
4 out of 5 stars
4 out of 5 stars review

I am more focused and feel with it!

[This review was collected as part of a promotion.] Helpful in keeping me focused and with it in my mind. I don’t really notice any bad taste or smell. Quality ingredients like L-Tyrosine, L-Theanine,vitamin B6 for instance. I think it’s a little pricey since you only get 30 capsules per bottle and you take 2 a day.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 2, 2025
Reviewer name: tanaz007_4183
5 out of 5 stars
5 out of 5 stars review

Focusing on everything

[This review was collected as part of a promotion.] To help support enhanced mental performance take a serving of 1-2 capsules in the morning or early afternoon, preferably with a light meal. If you weigh 200 lbs or more, you may increase this initial dose to a maximum of 3 capsules. To help support enhanced dream state you may take a serving of 1-2 capsules 4-6 hours prior to sleep, preferably with a light meal. Do not exceed 4 capsules in a 24 hour period unless otherwise directed by a healthcare practitioner.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 25, 2025
Reviewer name: brianh49_9758
4 out of 5 stars
4 out of 5 stars review

Pretty good!

[This review was collected as part of a promotion.] A few weeks ago, I received this bottle of Alpha Brain from @Influenster to try out, and I’ve been taking it daily ever since. I was honestly a little skeptical at first, but I’ve genuinely noticed a difference—especially with staying focused and clear-headed during long workdays or when I have a lot on my plate. It’s been a nice little addition to my daily routine, and I’m honestly impressed with how much it’s helped. Grateful for the chance to try it out!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 24, 2018
Reviewer name: cityofangels
1 out of 5 stars
1 out of 5 stars review

Nausea and Dizziness

According to the reviews, there seems to be a certain subset of people who react badly to this product, and unfortunately I was one of them. I took two pills with a light meal around noon (as directed), and a few hours later I felt intense nausea, dizziness, light sensitivity, weakness, and general motion sickness whenever I looked at a screen. Napping and eating didn't help it very much. The symptoms finally went away around 1 in the morning when I was able to fall asleep. I don't know what neurons this supplement fired up in my brain, but they weren't the helpful ones lol. Completely ruined my day and I certainly won't risk taking it again.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 25, 2025
Reviewer name: mackenzietheglobetr_5438
3 out of 5 stars
3 out of 5 stars review

No difference in one month of use

[This review was collected as part of a promotion.] This product is difficult for me to rate based off of only one month of use. I didn’t have any side effects from using this product, but I am not sure that I had any increase in cognitive function. It contains some vitamins and minerals that I might not get normally on a daily basis, so that’s a plus. I think I would need to take this supplement longer to determine whether or not it has an effect on my mental clarity, along with a healthy diet and working out.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 11, 2024
Reviewer name: sehari3
4 out of 5 stars
4 out of 5 stars review

Don't be scared to try

[This review was collected as part of a promotion.] I take two of these in the morning every morning and they really do sharpen me up for the entire day. I feel more energetic and focused. I definitely notice an increase in my cognitive abilities. I can process information quicker and have a much easier time articulating myself in verbal conversations. It has increased my productivity at work by a noticeable amount. It kind of has the same effect as caffeine but without the jittery wired feeling I get when I drink coffee or an energy drink.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 25, 2024
Reviewer name: miah112
4 out of 5 stars
4 out of 5 stars review

You can tell the difference when taking them.

[This review was collected as part of a promotion.] These supplements are easy to take coming in easy to open bottle. The only downside is they don’t come in a month supply you would need two bottles for one month. The quality is high and for a supplement you can actually tell the difference when you take them. 

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 13, 2024
Reviewer name: saritalynne
4 out of 5 stars
4 out of 5 stars review

Caffeine free

[This review was collected as part of a promotion.] I received this Alpha brain daily cognitive support capsules for free from Onnit and Influenster in exchange for my honest review. The packaging was good, a good quality bottle. The bottle comes with 30 capsels. These are supposed to help with clear thinking. It supports memory, promotes focus, promotes mental processing, and helps with your flow state. I didn't really notice a difference with these other than increased focus. The best part is that these are caffeine free. These are great for people who are sensitive to caffeine.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 10, 2025
Reviewer name: deesant12_4478
3 out of 5 stars
3 out of 5 stars review

Not bad!

[This review was collected as part of a promotion.] I haven't noticed any difference while taking these maybe they need to be taken for an X amount of time to notice any differences. I do enjoy the ingredients in here not a bad taste and on par when it comes to pricing compared to other like products

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153