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 5,681-5,690 of 11,986 reviews
Mar 13, 2024
Reviewer name: Vance
5 out of 5 stars
5 out of 5 stars review

Skeptic turned believer.

[This review was collected as part of a promotion.] I was skeptical when my girlfriend gave me a half a bottle. Once I started taking I noticed a difference in general mental clarity and cognitive function. When speaking with others at work the words flowed more easily and smoothly. I'm a believer and would recommend to anyone.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 12, 2025
Reviewer name: chip10_8749
3 out of 5 stars
3 out of 5 stars review

Not my favorite

[This review was collected as part of a promotion.] I am 42 years old, so I need brain support vitamins. I have tried a couple of different products. This one is not my favorite. Somehow, this one gives me a heartburn, especially when I take it at night time.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 21, 2025
Reviewer name: rebeccam809_3565
4 out of 5 stars
4 out of 5 stars review

Great for focus and energy.

[This review was collected as part of a promotion.] These capsules are easy to swallow and I took 2 daily with lunch. They did seem to help with focus and energy during midday crunch when I tend to get tired and burned out. They come in a sleek, and easy to open bottle. I would prefer it to have a childproof lid. Overall, they work well for focus, memory and energy.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 19, 2025
Reviewer name: tinag189_7023
4 out of 5 stars
4 out of 5 stars review

Effective!

[This review was collected as part of a promotion.] This supplement provides cognitive support and includes earth-grown nutrients, herbal extracts and amino acids. It supports focus, memory and reaction time. I love that it's caffeine free and really assists with mental clarity!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 17, 2024
Reviewer name: mimi11488
3 out of 5 stars
3 out of 5 stars review

Always Important to take care of your noggin!

[This review was collected as part of a promotion.] I originally opted into trying this brain supplement from Onnit because I’ve been mixing up my words a lot like no auto correct mistakes 100% me so I thought it would help me. However, I’m still having mistakes so I’m thinking it’s not the best for me. But, it doesn’t smell or taste bad in my opinion. You do need to make sure you consult your doctor first before taking especially if you are on medications or have any health issues.

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

Thanks for giving Alpha Brain a shot and for sharing your experience! Everyone's experience can be a bit different with a formula like this. It's formulated to help support memory, focus, and processing speed, and it can take some regular use to really feel these changes. We suggest trying it for at least two weeks and if you still aren’t happy we can help with some supplement tips and/or to help facilitate a return if needed. You can email help@onnit.com for further assistance with your order!

Jul 20, 2025
Reviewer name: yadarism_1729
4 out of 5 stars
4 out of 5 stars review

Easy to swallow.

[This review was collected as part of a promotion.] This capsules are designed for helps support focus, memory and reaction time. Great ingredients. Instructions are super clear to understand. Taking for a couples of days without allergy reaction. Need more time to confirm if they work. Only be careful with the supplements because lid isn’t childproof. Don’t have any taste.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 19, 2025
Reviewer name: kevint90_8821
5 out of 5 stars
5 out of 5 stars review

Good brain vitamins

[This review was collected as part of a promotion.] The ingredients look safe and so far it easy to drink. It has no smell and the pill is a good size to swallow. I only start to take for a week. So far it seems to help me more focus. I will try it longer hopefully it will work on my brain as the company advertised.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 30, 2024
Reviewer name: codimarie
3 out of 5 stars
3 out of 5 stars review

Didn’t work for me

[This review was collected as part of a promotion.] I’ve been interested in nootropics for quite some time now for many different purposes. I was excited to get these and try them out. I’ve tried the Alpha Brain supplements multiple times now without any noticeable difference. I know that sometimes it takes a month or so for supplements or medicines to start working. I’m jealous of the people who say they’ve felt effects with just one use. That being said I will continue to use the alpha brain supplements and will report back if anything changes. Nootropics are hard to figure out since it’s all basically trial and error on what actually works with your body. No one knows until you’ve tried and figured out the right dose and what supplements work for you. That’s the down side to nootropics. Wish there was a better easier way to be honest but everyone is different. So while this didn’t work out well for me it doesn’t mean it won’t for you!

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 3, 2025
Reviewer name: guadalupeg135_9601
5 out of 5 stars
5 out of 5 stars review

Great for a good energized Day !

[This review was collected as part of a promotion.] Love it! Easy to take ! Really works for hard days at work to focus! Definitely worth your buck! No taste at all and small so you can take it anywhere. Ingredients makes you more awake and alert. Packaging is small .

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jan 12, 2023
Reviewer name: KLRAM
5 out of 5 stars
5 out of 5 stars review

ONE Bottle!

ONE bottle is all it took. I work as a parts sales rep for an agricultural equipment dealership. I was struggling at times to remember information that was crucial to my daily work. Found myself dazed and confused at times, especially during when I was overwhelmingly busy. I was spaced out, and foggy all to often. I've been at this job for 15 years, and just this year, all this was slowly happening! I'd been seeing ads for Alpha Brain on social media. Figured I try one bottle to see if it helped. After one week I could tell there was a difference. I could focus. I could remember specific things from previous YEARS. The brain buzz was gone! That ONE bottle was empty five days ago. The last couple of days have been a slow return back to the way things were before, and I hate it! My woman even noticed I was a little off this week. Thank You ONNIT for creating such an AWESOME product! I re-ordered AND subscribed this morning. I DO NOT want to be without ALPHA BRAIN!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153