Always for energy, work, gym pre workout and also an important factor for me is mood increase/depression. To be honest in my years of use I haven't been able to pin point a good or bad strain or one that differs from the others I just usually order all the white and all the greens from each supplier and I can never pick a favourite they all seem to have the same effects on me. I don't dose high so maybe why but usually a heaped teaspoon full 4 times a day I usually would get huge increase in mo