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 1,741-1,750 of 11,986 reviews
Mar 23, 2020
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

High grade quality

Its effective. Its really really effective. I bought it for my grandparents and within days i noticed they were back to normal. They had signs of dementia before. Its a really great product thank you so much guys!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jan 4, 2023
Reviewer name: Jonah26
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Regaining performance capacity

I had a traumatic brain injury in a car accident in July of ‘21 and taking the alpha brain daily supplement is the first thing that has been able to make me feel like my brain is performing as well as it used to

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 21, 2021
Reviewer name: S Cordova
2 out of 5 stars
2 out of 5 stars review

Verified Purchase

Not as Effective as Advertised

I've been taking Alpha Brain for the past couple of weeks and notice very little difference in energy or concentration. I get better results from a standard cup of coffee.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Customer Experience

Thanks for giving Alpha Brain a shot and for sharing your experience! Everyone can respond differently to a formula like this, and we're happy to help with some supplement tips and/or to help facilitate a return. Please email Help@Onnit.com for further assistance with your order!

May 2, 2020
Reviewer name: DaniD
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Meh

I don't really see a significant difference. I work overnights,6pm-6am, thinking this would help with the fog brain that occurs as a result from being overworked.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Customer Experience

Sorry to hear if you didn't experience the results you expected with Alpha Brain! If you just took the product a couple times and noticed some difference, it may be beneficial to try for at least a solid two weeks before you decide whether or not it's working! For some people, they can tell a change after the first dose, but many others needs a little bit more time to see a difference.

Jun 30, 2021
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great product

This product works very well when it comes to making you focused and giving you the brain power to do any task at hand. I enjoyed it just think it could be a little cheaper.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 24, 2021
Reviewer name: JohnOsynthesis
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Gooder than the rest

My brain is an ultra focused force of nature. I feel I can twist up tornadoes of creativity with my frontal lobe and stay persistent like monsoons in deep thought. Don’t have a beta brain.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 20, 2021
Reviewer name: Train Yin
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Disappointed

Didn't really feel any different on mind mind used it for 3 weeks, didn't give me any more energy that I already had, work pattern thought process was still all the same no difference at all, I'm freakn really disappointed in this crap!!!!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Customer Experience

We appreciate you taking the time to leave some feedback! Sorry to hear that Alpha Brain Instant didn't benefit you. Every person reacts differently to supplementation, and it's not uncommon to have different experiences. Please note that this supplement's main focus is to help support memory, focus, and processing speed, but not necessarily increased energy. That being said, if you are ever dissatisfied with your order, you can always contact our support team at help@onnit.com for further assistance!

Aug 25, 2021
Reviewer name: Ragen
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Not worth the money

I see no difference except maybe a lil more energy, also one bottle is enough for only 2 weeks. To me the price is way to high and I don't even have a full months supply to be able to check it out throughly.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
reply from Customer Experience

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, which is why we offer the 30ct bottle as our entry-level size. After that time, if you’re still not feeling it, please feel free to reach out to us directly for further assistance!

May 11, 2025
Reviewer name: Tony
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Alpha Brain Review

I feel a definite positive difference when I use this product. my mental and physical energy are enhanced for sure. This enables me to get more things accomplished in many areas of my life. I recommend this product

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
May 27, 2021
Reviewer name: Vicky
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Death

Felt like death after taking this. It made me depressed and nauseous all day. Never again. Maybe this only works for older people. I’m 25. Don’t do it.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153