It is clear that this product contributes to my energy and productivity with some possible boost in focus. I do find that I want to take higher doses than the general recommendation of 5 capsules. So far I like 5 upon waking and taking 4 more with afternoon meal. I would try more but bottle says not to exceed 9.

Too early to tell

first day I had a headache, second day no headache but i noticed I was calm. Each day after my 'sense' of calm seemed to last longer and longer into the day-well into the late afternoon early evening

The first day I used the product I felt incredibly alert and focused on my work. I was very impressed. Those effects seemed to diminish each day as the week went on though, as if there was a sort of tolerance at play.