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 5,041-5,050 of 11,986 reviews
Aug 23, 2024
Reviewer name: joellen5
3 out of 5 stars
3 out of 5 stars review

Made me sick

[This review was collected as part of a promotion.] This was okay. It kind of made me feel sick in the beginning of taking it so I was hesitant to bc continue but I did notice the effectiveness of the product. Just not worth it tho for the side effects

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jan 10, 2024
Reviewer name: Linz
1 out of 5 stars
1 out of 5 stars review

Like I drugged myself

First, shakiness. Next, dizziness. Third, nauseous. Lastly, had to leave work after vomiting, unable to stop dizziness. Couldn’t leave right away for safety concerns. Stopped once on my way home just to throw up again. Had to sleep it off for three hours or so; woke up feeling terrible still. Does not work for everyone :(

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.

Jul 1, 2025
Reviewer name: josewolf_3653
4 out of 5 stars
4 out of 5 stars review

Solid Mental Boost, Just Not Budget Friendly

[This review was collected as part of a promotion.] I've been using Alpha BRAIN for a little over 20 days and have noticed a real change in my ability to stay focused during long tasks, especially when working in front of a computer. I feel mentally sharper without the need for caffeine, which I greatly appreciate. The capsules have a neutral flavor, not unpleasant at all. The packaging is very professional, compact, and well sealed, with a simple design that conveys confidence. As for the ingredients, I like that it includes bacopa, L-theanine, and huperzine A, although I wish they were clearer about the exact quantities. The effectiveness has been consistent: it doesn't give me energy like a stimulant, but it does give me mental clarity, improved short term memory, and fewer distractions. As for value for money, it's not cheap, but if you have the budget and are looking for caffeine free focus.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 14, 2024
Reviewer name: jennal174_6755
4 out of 5 stars
4 out of 5 stars review

Great memory product

[This review was collected as part of a promotion.] These are great supplements to improve memory focus and cognitive speed. I like that it doesn’t have caffeine so that it doesn’t make me jittery but really does help me focus at work when staring at a computer screen all day pills themselves are small and easy to take with limited, taste left in your mouth 

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 8, 2020
Reviewer name: HeyZeus90
4 out of 5 stars
4 out of 5 stars review

Mental clarity and on point focus

Trying this product after listening to the JRE i wont go back. Feeling so stable and on point from taking these tablets in the morning. In combination with upping the dosing of Omega 3 and Vitamin D from listening to JR and Dr. Rhonda Patrick. You guys are the best for information coming from Australia these tablets are really expensive compared to pretty much every other supplement so thats why it isnt a 5 star review. Getting this product onto Australian shelves and 1/2 the price would be ideal

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 5, 2025
Reviewer name: sunnyw_3616
5 out of 5 stars
5 out of 5 stars review

Works

[This review was collected as part of a promotion.] Onnit has become my favorite brand of vitamins. These are easy to take and I noticed a difference in my clarity just a couple days in. It has helped with that drowsiness mid day slump. Highly recommend

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 10, 2023
Reviewer name: WDOcr
5 out of 5 stars
5 out of 5 stars review

This is a legit supplement not just a placebo

I've been on this for several weeks and am loving it so far. I split the serving into morning and evening so I'm getting a boost before work and another boost when it's time to work out. I was taking two in the morning and getting more done at work but when I switched to a night serving I was able to stay focused on work out and have stopped taking a pre-workout for energy.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 27, 2024
Reviewer name: dallamalla4
4 out of 5 stars
4 out of 5 stars review

Helpful but make me nauseous

[This review was collected as part of a promotion.] These helped with my fatigue and also helped me stay task focused and think more clearly. They don't have that gross supplement smell other vitamins have either. However they did give me some nausea so I didn't continue taking them.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 10, 2024
Reviewer name: shahsonal
4 out of 5 stars
4 out of 5 stars review

Great for Memory and Focus

[This review was collected as part of a promotion.] I received this product as complementary for an honest review. These easy to swallow supplements are great for memory, focus, and cognitive functions. It has vitamin B6, focus blend and Fuel blend to help support memory function and reaction time. I would highly recommend it to people who are aging and have difficulty with it.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 16, 2024
Reviewer name: tarav39
3 out of 5 stars
3 out of 5 stars review

Idk if they actually work or possibly a placebo

[This review was collected as part of a promotion.] I would like to start off by saying these pills do not smell or taste like anything which to me is VERY important. I honestly didn’t notice a huge difference after trying these for a couple weeks but the one difference I did notice was I was able to focus on one task without jumping to 8. I don’t really think a pill could help with reaction time… idk what that claim is supposed to mean. Another claim is that it helps with memory. I feel like my memory is pretty good but at the same time I feel like I always remember things and never really thought about how much I don’t remember. Placebo? Idk. Would I buy these myself? No

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!