I usually take a few supplements in the AM, fat burner, energy etc. I got my free bottle of this stuff and put it on my desk so I'd remember to take it the next morning. I took 1 (2 suggested) and was thinking to myself I was really very focused and it was a great addition to my other "stuff". At lunchtime I noticed I hadn't taken my normal morning stuff. I was totally shocked that one of these had given me such a boost. I have lots of early morning calls, this has made me feel smart again...Read more.