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 5,661-5,670 of 11,986 reviews
Sep 9, 2024
Reviewer name: rachelwojcik3
5 out of 5 stars
5 out of 5 stars review

Excited to see results

[This review was collected as part of a promotion.] Excited to see results from this product! I’m hoping it will help me during school and focus on my studies. I haven’t taken it long enough to see results but I am excited to continue taking this product!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 23, 2025
Reviewer name: michaelg106_4440
5 out of 5 stars
5 out of 5 stars review

One word comes to mind using this, WOW!

[This review was collected as part of a promotion.] I've been taking this for a couple days now and I can already tell a huge difference in my focus! I don't find myself zoning off as much anymore and my concentration levels have skyrocketed. I'm eager to find out how I'll feel in a week :) love this supplement!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Sep 15, 2024
Reviewer name: kaylan86
5 out of 5 stars
5 out of 5 stars review

Good product

[This review was collected as part of a promotion.] I love the effectiveness of this product I've noticed a big difference in my concentration the ingredients are natural and I like the way the product was packaged.. taste is ok good value for your money.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 9, 2025
Reviewer name: amandab726_1572
5 out of 5 stars
5 out of 5 stars review

Taste good, made with healthy ingredients

[This review was collected as part of a promotion.] Easy to take supplements. Made with Healthy ingredients. Good value for the price. Taste is like other vitamins. Caffeine free supplement. When taken daily I have more productivity and overall energy.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 25, 2025
Reviewer name: irinac44_4158
5 out of 5 stars
5 out of 5 stars review

Alpha BRAIN® helps me stay on top of everything, e

[This review was collected as part of a promotion.] As a busy mom, staying focused can be a challenge – especially with toys everywhere and kids running around 😅 Alpha BRAIN® has been a game changer! I love that it’s caffeine-free but still helps me stay sharp, clear, and productive throughout the day. Definitely adding this to my daily routine!

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Mar 21, 2025
Reviewer name: charlottes1884_4764
5 out of 5 stars
5 out of 5 stars review

Great

[This review was collected as part of a promotion.] The ingredients in this are those that I feel Comfortable taking. There wasn’t much scent no bad aftertaste and the packaging is great for easy storage. They are very effective and a great value for the money.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jun 4, 2025
Reviewer name: traeson_8401
1 out of 5 stars
1 out of 5 stars review

Unfortunately not for me

[This review was collected as part of a promotion.] I was very excited to try these however I feel a little queasy taking these. I would advise to take with a meal. They are supposed to make you alert and help with brain functions. I do feel alert however i dont tend to like supplements that make my heart race. Not 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

Jul 10, 2025
Reviewer name: yesir_1134
5 out of 5 stars
5 out of 5 stars review

Nice!

[This review was collected as part of a promotion.] These onnit Alpha Brain supplements come in some pretty slick packaging. They’re easy to take and don’t have a nasty after taste. They’re easy don’t smell. Overall pleased with the product. Waiting to see if they help with “mom brain”

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Jul 14, 2018
Reviewer name: Rose R
1 out of 5 stars
1 out of 5 stars review

OMG, ruined me!!

Day 1, about 4 hours after I took my first dose with a light meal, i was hit with horrible nausea, thought i was gonna hurl, and i was at work!! then came the worst gas ever...by the time i made it home, my body totally purged itself from the back end for like 2 hours. i thought i had food poisoning, didn't connect it with AB...by the time I went to bed & the next morning I felt great. Day 2, exactly the same thing happened, so i figured it was AB, and after reading lots of reviews, i see that it was. Didn't take it for 2 days, felt fine. Took it again just to make sure, WHAM, exactly the same symptoms. This is not worth it, especially for the $$. And my diet is pristine, i'm very healthy for my age, am a regular at crossfit, have never had a reaction to any supplement...i canceled my trial, will not be purchasing any more stuff. but i love Joe Rogan (heard about it on his podcast)

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153
Apr 6, 2025
Reviewer name: mamabearest2021_364
5 out of 5 stars
5 out of 5 stars review

Worked really well

[This review was collected as part of a promotion.] I was a bit weary of trying a product like this however I’m very impressed with the results. This is an all natural non addictive stimulant free supplement that promotes focus , supports memory and helps you feel driven. I’ve been taking this prior to tackling big projects and it helped me multitask without losing focus or feeling overwhelmed. There’s no dreaded crash that can often happen when taking “caffeinated focus supplements” , no upset stomach for me and I have a very sensitive stomach , no aftertaste and the capsules themselves also were tasteless and odorless. These worked surprisingly well for me. I was sent this item complimentary in exchange for my honest and unbiased opinion.

Review from onnit.com
Helpful?1KJFR6XS8BD413614914153