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% (1,792)
  3. 3 stars10% (1,251)
  4. 2 stars7% (859)
  5. 1 star16% (1,909)

Member photos

Sort by |
Showing 8,631-8,640 of 11,986 reviews
Jul 18, 2020
Reviewer name: Rich_09
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great product

Really helped me get focused at the start of my day

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jan 3, 2022
Reviewer name: Bras
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

No effects

No benefits fffffffffffeffffffffffffffffffffffffffffffffffff

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!

Aug 6, 2023
Reviewer name: Anonymous
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Overpriced placebos

Took 2 per day for a week. Felt NOTHING different. Save your money.

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

​​Thanks for leaving Alpha Brain a review! We're sorry to hear that it has not worked as you were expecting. Everyone 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. For some folks, it can take a couple weeks of consistent use to really start to feel the benefits. That being said, if you are ever dissatisfied with your order, you can always contact our Customer Service team by emailing help@onnit.com for further assistance!

Nov 19, 2020
Reviewer name: G77need
2 out of 5 stars
2 out of 5 stars review

Verified Purchase

Not a big help like Joe rogen

I don't see any difference.. Joe Rogen said it helped nope

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

Thanks for taking the time to share your experience! We're sorry to hear that Alpha Brain wasn't the right fit for you. Being that we're all unique individuals, it's expected that we have a range of responses, since supplementation is not one size fits all. With Alpha Brain working to help memory, focus, and processing speed - sometimes it can take a few tries to notice these effects.  Experimentation is key! That being said, we would never want you to feel stuck with a product that didn't meet your expectations, and if you reach out to our customer experience team, they'd be happy to help further!

Nov 3, 2022
Reviewer name: Defchef
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Wow! I was skeptical but it really works.

Works great. Keeps me focused all day. Tons of energy.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 16, 2025
Reviewer name: Dale F
2 out of 5 stars
2 out of 5 stars review

Verified Purchase

Hasn’t changed anything

I don’t see or feel any differs using this product

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

We appreciate your feedback after trying our Alpha Brain, although so sorry it wasn't a great fit 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 - and sometimes it can take time to notice these effects. Regardless, glad you tried it out! -- Cailee B. ONNIT Customer Service Associate #getonnit

Aug 24, 2020
Reviewer name: Carlos1776
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Effectiveness is lacking. Big time. Not worth it.

Pretty sure this doesn’t work at all. Tried for a couple weeks. Then took days off. No difference.

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

Thanks for reaching out and leaving a review! Apologies that Alpha Brain did not work for you. Everyone 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. That being said, if you are ever dissatisfied with your order, you can always contact our customer experience team for further assistance!

Nov 3, 2021
Reviewer name: P DADDY
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Explosive diarrhea!!!!!

I cant take them because they wreck my stomach! Like I be crapping my guts out all day

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Dec 23, 2024
Reviewer name: Devin
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A Difference!

Great I really felt a difference! I plan to buy more

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

Verified Purchase

Not worth it

I get nothing from it, I feel the same as I do without taking the product.

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

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!