I was excited to try this product but was let down. Didn't mix to great, did not taste good in my opinion and felt not pump or tingle. I felt a little but more focused but my energy levels were not there. Same results the next two times using it. Day four I went for two scoops. This time I was more focused and had a little more energy but that was over powered by the nausea feeling I now had. Not knowing what caused that I tried two scoops again two days later and got the same feeling. Not saying that this product does not work, but I am saying it does not for me.