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 4,981-4,990 of 11,986 reviews
Aug 16, 2024
Reviewer name: pf1996
3 out of 5 stars
3 out of 5 stars review

Not for me

[This review was collected as part of a promotion.] Is this really effective? Is this clinically sound and evident? No. Taste is fine. Packaging is fine. Value is absolutely not there. There’s no evidence that this works and my anecdotal evidence is that it also does not. Ingredients are safe. Joe Rogan stop this.

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

Thanks for leaving 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 it. Being that we all have different needs, it's expected that we all respond to supplements a bit differently. Please feel free to reach out to us directly by emailing help@onnit.com if you need further assistance.

Jul 16, 2025
Reviewer name: iamchrisc_8721
4 out of 5 stars
4 out of 5 stars review

Focus & Energy Boost Without the Caffeine

[This review was collected as part of a promotion.] I've been taking Alpha Brain for about a week and have enjoyed the boost of focus and energy that it gives you. The capsules are easy to take and don't have any weird taste. Good option to check out if you are looking for a caffeine-free focus or energy booster.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 9, 2016
Reviewer name: JPMACD
4 out of 5 stars
4 out of 5 stars review

Impactful with consistant and continued use, BUT..

Alpha Brain works well to enhance focus and I noticed increase productivity at work in the 1 year since starting to take it. It can produce vivid dreams depending on the person and how/then it's taken. The largest drawback I've noticed is that is does effect your normal sleep cycle. When I stopped taking it for a period of a couple weeks after running out and waiting for a backorder, I noticed increasingly poor sleep quality and restlessness at night starting a few days after not having it. I'm not wild about anything that can alter my natural sleep state like that. As far as memory and focus are concerned though, it does work well.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Dec 12, 2022
Reviewer name: Sandramx1
1 out of 5 stars
1 out of 5 stars review

Nope- Sorry, was excited.

I’m glad I only got one bottle because the only think I felt was sort of sick. Zero extra energy or ‘get up and go.’ I used almost (aside from 2 pills) the whole bottle had didn’t feel 1 benefit. Not even a feeling of brain sharpness or focus. It definitely didn’t help with weight loss efforts either.

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

We appreciate you taking the time to share your experience with Alpha Brain! We're sorry to hear that it didn't wok out. 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. Sometimes it can take a few tries to notice these effects. If you need any assistance with your order or would like to chat more about your experience, please email help@onnit.com!

Oct 17, 2024
Reviewer name: stefanier8bfc
5 out of 5 stars
5 out of 5 stars review

Effective supplement

[This review was collected as part of a promotion.] I was previously taking a much more expensive brand of a similar product that I liked however a made a switch to this supplement and felt it worked just as good if not better. It didn’t have any aftertaste or make me feel sick. Loved the ingredients list and found a lot of the ingredients very effective in helping focus, memory, etc. I’ll definitely continue taking these. I feel like it’s really helped me out.

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

Great for studying !!

[This review was collected as part of a promotion.] This is a nootropic formula that supports memory focus and clear thinking. It works so good when you are studying, really helps you stay in the zone lol 😂 . They don’t taste bad at all I love that !! The packaging is nice and durable. The price is also reasonable for these !

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 10, 2024
Reviewer name: stara13
5 out of 5 stars
5 out of 5 stars review

Give it a try

[This review was collected as part of a promotion.] I’ve been using these alpha brain vitamins for a few weeks. I can’t feel a big difference, but I am a bit more focused, so I will continue to take them and see how they work within the next few weeks. The nice secure packaging and the pills don’t taste like anything. 

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 25, 2025
Reviewer name: kristinak56_2975
5 out of 5 stars
5 out of 5 stars review

Great

[This review was collected as part of a promotion.] I received this complimentary product from Influenster & Onnit in exchange for my honest review, and I have to say, Alpha Brain is impressive! It’s effective and helps keep you focused and engaged throughout the day. My husband absolutely loves it—he says he feels more alert, energized, and mentally sharp since starting it. The product contains clean ingredients, has no taste, and is easy to take. It’s perfect for anyone who needs a little extra support with memory and focus. The value for the money is great, the packaging is sleek and convenient, and the overall quality and effectiveness are excellent. Definitely worth trying if you’re looking to support your cognitive performance!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 23, 2025
Reviewer name: kailah25_253
5 out of 5 stars
5 out of 5 stars review

Better than a cup of coffee!

[This review was collected as part of a promotion.] I’ve used Onnit Alpha Brain for about 2 weeks now, and while skeptical at first, I noticed a tremendous difference in my work performance! I usually drink coffee or matcha for that caffeine boost but it always leaves me jittery and ends with a crash. Alpha Brain gave me mental clarity and focus with no negative effects. Once I took it I was in the zone in about 30 minutes and breezing through my tasks. This doesn’t replace a good cup of coffee, but it’s definitely a clean, non caffeinated way to boost brain function. 10/10.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 22, 2024
Reviewer name: alpantal
5 out of 5 stars
5 out of 5 stars review

Cool product and concept

[This review was collected as part of a promotion.] Cool product and supplement. I wanted to wait a bit after trying consistently to see if I notified a difference. It def helps with my focus form what I can tell. Definitely makes me feel sharper. I’m excited to see how I feel after a full 30 days.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153