I purchased this supplement for myself and my 7 year old son who is ADHD and OCD. For myself, I feel much calmer and I take setbacks and disappointments more in stride. The biggest difference, though, is in my son! Wow! I did not tell him why he was taking this new supplement so that I would know whether his comments were original (not suggested by me.) After a few days, he told me that he was sleeping much better and not waking in the middle of the night anymore. He also is calmer during the day, focuses on his schoolwork better, pays more attention in class, and has an easier time making decisions. This is so much better for him than Ritalin!!!