









🧠 Unlock your brain’s full potential — focus like a pro, naturally!
Nootropic Strongest Focus Supplement by CRTX Nutrition is a premium, caffeine-free brain booster made in a GMP-certified USA facility. Featuring clinically backed doses of Alpha-GPC, 10:1 Lion’s Mane, Rhodiola Rosea, and other adaptogens, this 90-capsule formula is designed to enhance cognitive function, memory, and mental clarity while eliminating brain fog. Ideal for busy professionals and students seeking a natural, effective edge in productivity and focus.





| ASIN | B0BKTLZJZP |
| Best Sellers Rank | #170,462 in Health & Household ( See Top 100 in Health & Household ) #8,070 in Blended Vitamin & Mineral Supplements |
| Customer Reviews | 4.2 4.2 out of 5 stars (104) |
| Date First Available | October 28, 2022 |
| Item model number | 1 |
| Manufacturer | CRTX Nutrition |
| Product Dimensions | 1 x 1 x 2.51 inches; 3.2 ounces |
L**S
Excellent focus and mental clarity!
I absolutely love this supplement! It has been a great addition to my daily routine. I’ve noticed improved focus, better mental clarity, and less brain fog, especially during long workdays. It’s great to feel more focused without jitters, and ingredients like Lion’s Mane and Alpha-GPC truly make a difference. The quality feels premium, and the fact that it’s made in the USA gives me extra confidence. I will definitely continue using it and highly recommend it to anyone looking for a natural boost in focus and cognitive performance.
J**N
This is a power house supplement.
I'm very excited that this is made in the USA, and it had such powerful ingredients that support mental clarity. I feel better able to focus and clear minded. The caffein gives me an extra boost in the afternoon.
V**M
Me ha ayudado bastante en el poco tiempo, me doy cuenta que funciona muy bien, me ayuda a estar mas atento y con mejor memoria
J**D
No Discernible Benefits
I’ve been trying lots of different nootropics lately. I normally give them about 6 weeks to get a good feel for them. I’m changing to something else 4 weeks into these because they just don’t work as advertised. Wish I could get the money back for the last bottle, but oh, well. 0/10. Would not recommend.
W**6
Works well
Works very well for me with my regular meds. Alone however I can still lose some focus when bored. My adhd is inattentive...very inattentive lol. I also suffer narcolepsy so that may play into this. But I do like this product. Came thru ina pinch when my pharmacy ran out of my typical meds😑. The price is a bit steep for me vs my regular as well. Doesnt look like the pic either, but dont let that steer u away. My pills are brown not white.
K**I
Absolutely amazing
There is a lot of products out there that really make it hard to find the right one. Let me just tell you guys that as a physician I really have to do my own research to make sure that what people sell is NOT snake oil. This product really works well, it has enough ingredients to replace about 4 to 5 different bottles and I really think the best way to use this product is with the expectation that you will see subtle changes that occur with time. No side effects for me. I really think this hits all of my requirements, and that it is natural, safe, and effective without any crashes for me. In short, my focus specially in long day shifts has improved and I’ve seen some really nice and gradual changes in my mood. I am more well-rounded in terms of my thinking, and as a physician this really is a big step forward in a natural way to help with focus instead of using Prescription medication. I would highly recommend this to anyone. Try it and see for yourself.
T**R
Smooth, clean focus
Gonna keep it as short and sweet as possible 3 caps with no caffeine: good, some days I didn't need any caffeine to focus or work which is incredible as I usually intake 2-4 cups of coffee a day. 3 caps with caffeine: great, kept the jitters and the urge to jump from task to task, or to stop in the middle of boring tasks at bay. 6 caps with no/low caffeine: incredible! Plowed through tasks, worked quickly, felt like time was moving more slowly with how quickly things were getting accomplished. 6 caps with high caffeine: Amazing! Whether it was going into the office or going to the gym, taking this with 2-400 caffeine felt illegal it was so good!
A**H
Became my go to for focus!
If I had to describe the feeling of taking this in two words it would be "calm focus". I wouldn't consider myself a supplement junkie but I've tried a good amount of supplements over the past 5-6 years since I got off my ADHD prescription and CRTX is at the top of the list for me when it comes to focus. I love how I feel when taking it and had zero side effects and for someone with an iffy stomach that's a huge plus. The serving size is perfect, I've done a fair bit of research and the serving size lines up with most clinical trials that have been done on the supplements. If you're looking for a calm focus boost and are looking for something without caffeine, look no further!
Trustpilot
1 week ago
2 months ago