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 5,101-5,110 of 11,986 reviews
Aug 16, 2024
Reviewer name: adr89
5 out of 5 stars
5 out of 5 stars review

Good

[This review was collected as part of a promotion.] Onnit Alpha Brain is a popular nootropic supplement designed to support cognitive functions like memory, focus, and mental clarity. It features a blend of ingredients such as bacopa monnieri, L-theanine, and alpha-GPC, which are commonly associated with cognitive enhancement. ### Pros: 1. **Ingredient Transparency**: Onnit provides detailed information about the ingredients and their dosages. 2. **Positive Reviews**: Many users report improved focus and mental clarity. 3. **Natural Ingredients**: The formula includes several well-regarded nootropic ingredients. ### Cons: 1. **Mixed Results**: Effects can vary widely among users. Some report significant benefits, while others see little to no change. 2. **Price**: It can be relatively expensive compared to other nootropic supplements. 3. **Limited Research**: While some ingredients have promising studies, the overall efficacy of the formula lacks robust clinical trials. Overall, Onnit Alpha Brain might be worth trying if you're looking for cognitive support, but individual results can vary, and it's essential to consider it as part of a broader approach to mental wellness.

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

Really expensive

[This review was collected as part of a promotion.] For the price, you only get 15 days worth (2 capsules daily, 30 total) which is pretty expensive in my opinion. I like the ingredients, though. I can’t tell if it’s a placebo or not, probably works best if I take them for more than 15 consecutive days, but I can’t afford to keep buying them.

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

Thanks for taking the time to share your experience! We're sorry to hear that Alpha Brain wasn't the right fit for you. 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. 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 Service team, they'd be happy to help further!

May 13, 2025
Reviewer name: slzmn85_3152
4 out of 5 stars
4 out of 5 stars review

Noticeable Boost in Focus and Mental Clarity!

[This review was collected as part of a promotion.] I’ve been using Onnit Alpha Brain for a few weeks now, and I’ve definitely noticed a positive difference in my focus and mental clarity. I typically take it in the morning before work, and within about 30 minutes, I feel more alert and able to concentrate without the jitters or crash I get from caffeine. It’s been especially helpful when I need to power through long meetings or detail-heavy tasks. The ingredients are backed by some solid science, and I appreciate that it’s stimulant-free. The capsules are a bit large, but easy to take with water. Overall, a great supplement if you’re looking for a mental edge without relying on energy drinks or coffee.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 15, 2024
Reviewer name: sindys10
5 out of 5 stars
5 out of 5 stars review

They are very good

[This review was collected as part of a promotion.] Without a doubt one of the best. The packaging is good, they come well sealed. They have 30 vitamins. The ingredients are very good and they also give you energy. I do not recommend taking them at night. They do not have a bad smell and the value is good and they are very effective.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 16, 2024
Reviewer name: kyleeh54
5 out of 5 stars
5 out of 5 stars review

Perfect brain supplement for anybody and everybody

[This review was collected as part of a promotion.] As a student, sometimes homework is not fun and exciting but this supplement helps keep me focused for longer to get everything done. The packaging is easy to use and you get your moneys worth with the amount given. It doesn’t have a bad taste either like most supplements.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 26, 2025
Reviewer name: valentynar_6651
5 out of 5 stars
5 out of 5 stars review

I like it

[This review was collected as part of a promotion.] These are very good quality vitamins for memory. I've been drinking them for several weeks and I've noticed that I've started to remember more and forget less. It is very important for me that they have a very good composition and do not contain harmful substances. They do not have any unpleasant smell or taste and they are not large in size, they can be easily drunk with a sufficient amount of water. Even though these vitamins are not cheap, they are worth their price. They are really high quality.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Feb 1, 2023
Reviewer name: Meeshie73
5 out of 5 stars
5 out of 5 stars review

I NEVER write reviews

I have to start by saying that I was skeptical and not sure but I was willing to try something different. I am an addict/alcoholic with mental health issues and when I say I've tried everything, that is an understatement. Finally I was like let me try this and see what happens and at first, nothing but then a few weeks went by and let me tell you, this has changed and saved my life and I absolutely recommend it to anyone. The thing is you have to be patient and as an addict that is hard to do since instant gratification is in my DNA... LOL. but I'm telling you it's worth the wait and I thank God everyday that I found this product.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 22, 2025
Reviewer name: lynn_8591_7900
2 out of 5 stars
2 out of 5 stars review

Experienced negative side effects

[This review was collected as part of a promotion.] I received these Onnit Alpha-Brain Supplements from Influenster for testing purposes in exchange for my honest review. I’ve been taking these supplements over the past week with breakfast. As someone who struggles with focus and cognitive support, I was really hopeful to try these out. These are easy to digest and didn’t upset my stomach. They seemed to have helped my focus and mental clarity; however, the negative side effects I’ve experienced from these also made me feel irritable, dizzy, gave me headaches, and also caused night sweats. Personally, my body didn’t care for some of the ingredients in this supplement, and the negative side effects I’ve experienced outweigh the little bit of focus and clarity I was able to get from taking them. To each their own; this may work for others, but it’s a no for me.

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. -- Cailee B. ONNIT Customer Service Associate #getonnit

Apr 23, 2025
Reviewer name: xn1_1239
5 out of 5 stars
5 out of 5 stars review

Fine, I guess

[This review was collected as part of a promotion.] Decent supplements. No caffeine in the ingredients, so those sensitive to it won't have to worry. It didn't have any discernable taste, and the 30 capsules last 15 days, so I couldn't really judge if it was effective when added into my usual routine.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Aug 20, 2024
Reviewer name: sunnyviewlane
5 out of 5 stars
5 out of 5 stars review

Productivity through the roof!

[This review was collected as part of a promotion.] I've been using Onnit Alpha Brain for a couple weeks now, and I'm genuinely impressed with the results. As someone who juggles a demanding job and a busy personal life, staying focused and sharp is crucial for me. Since starting Alpha Brain, I've noticed a significant improvement in my memory recall and overall mental clarity. Tasks that used to feel overwhelming are now more manageable, and my productivity has gone through the roof. What I love most is that it's made from natural ingredients, so I don't have to worry about putting anything synthetic into my body. There are no jitters or crashes, just a steady, sustained focus throughout the day. It's become an essential part of my daily routine, and I highly recommend it to anyone looking to enhance their cognitive performance naturally. Five stars, hands down!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153