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 851-860 of 11,986 reviews
Jun 22, 2023
Reviewer name: Sophie
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Stomach aches

It's ok if you don't mind the bad stomach pain. Everyday I had the worst stomach pain and bloating . I thought I needed to see my Dr to find out what was going on then looked up actual real reviews n saw I wasn't the only person with these side effects.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 6, 2020
Reviewer name: Bryan C
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Onnit’s Alpha Brain

I sought after this product for a while. I debated back and forth, and researched to every end until I made the purchase. I’ve never felt better—turning 29. This is one of the best supplements for human growth, available on the market. An exceptional brand with a highly rewarding product for mental health. Thank you, Onnit!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 13, 2020
Reviewer name: Dave O
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great tool for Stand Up Comedians

Was skeptical at first, but after several days in a row where I had to be on point for a big show, I am convinced that my overall performance and memory were better after taking Alpha Brain. Some of the best shows I’ve done yet, and Alpha Brain not only helped with the show itself, but also in preparing and writing beforehand. Definitely recommend to any comics out there

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 20, 2015
Reviewer name: Alamoabarth
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Awesome

I've been using Nootropics for a long time. I used to use bulk products, but the taste was awful and just a pain. I started using Alphabrain about a year ago after looking at the ingredients I decided it was a good deal. The effect is hard to explain. If you want a drug like on limitless, move on it doesn't exist. What I have found are subtleties. Everything flows, I type better, words are waiting for me instead of having to search for them. The first time I was aware of the benefits I was sitting in a hotel room eating an apple. I finished the Apple and tossed it in the trash can from across the room, something I normally would have missed. It was strange because as soon as it left my hand I knew it was going in.. I repeated this a few more times. I take it every day..

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Dec 20, 2023
Reviewer name: Kelli C
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Made me very sick!

I took two of these following the instructions on the bottle. I started feeling nauseous about an hour later. Felt bad for several hours then got violently sick. Nothing else was out of the ordinary that day and my family ate the same foods I did that day and no one else got sick. Proceed with caution!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 23, 2020
Reviewer name: Curt1978
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

No idea if it works, too busy pooping

This product led me to having horrible gas and loose stools. I thought my body would eventually get used to it, but after 2 weeks of taking it, I had to stop- I have no idea if it helped since whatever brain matter I was possibly building, was going right out of me, into the toilet.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 5, 2023
Reviewer name: Old Dude
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Alpha Brain

I have been considering trying alpha brain for a little while, so the free two-week trial came up at the right time. There was nothing to not like about the trial, ordering was quick and easy, and the trial bottle came quickly. Unfortunately, after taking the product for two weeks, I had no noticeable changes or benefits. I believe it may work for some, just not for me. I am glad I had the chance to try the product before committing.

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

Thanks for reaching out and leaving a review! So sorry to hear that Alpha Brain did not work for you. Because everyone reacts differently to supplementation 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 - sometimes it can take time to notice these effects. That being said, if you are ever dissatisfied with your order, you can always contact our Customer Service team for further assistance!

Jun 29, 2015
Reviewer name: JLabisch
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Gives me extra, long lasting energy

I bought Alpha Brain about a month ago. I've used it before, and it's worked great as always. The days I don't take it there is a noticeable difference in my energy level throughout the workday. I highly recommend this product for anyone who wants that extra bit of focus, and longer, slower burning energy.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 13, 2020
Reviewer name: M Price
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Proof, Pudding

I've noticed a significant edge to my processing power after using this product. I tried Alpha Brain for a week and immediately noticed small changes in the way I compiled my thoughts into sentences. I felt more agile with my vocabulary and I was able to get results from my conversations with others. I stopped for 2 weeks and I noticed a familiar foggy feeling. I have been taking this supplement for 2+ months now and have been operating in Theta States all the way. I highly recommend getting your brain fired up!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 4, 2023
Reviewer name: mgs1200
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Promise Delivered

I just started a new career that requires a lot of mental bandwidth. A ton of info was coming my way and my mind was cloudy from being out of work for a while. I had seen the ads and thought, why not? That was a great decision, Onnit has delivered on their promise with Alpha Brain. I’m 3 weeks in and soaking it up like a sponge. Thank you, opening an account…

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153