This product is true to its name: after a few days of use I found it does help me stay on task.
I have not tried other brands but I did spend a week researching and educating myself about Lion's Mane products before committing.
This product is effective and works well for me, I don't need to look elsewhere. I highly recommend it if, like me, you are not a candidate for "main stream" ADHD medications but need help to stay focused and get through your day's work. Take as directed for positive results, you will enjoy its gentle effectiveness.