Ugghh I do not like Ephedra, Clen or even Albueterol. I tried all of them and I just do not like the elevation Hear rate. I like my heart rate to be low - then again I am an endurance person who likes to lift. I will always suggest more cardio and clean diet before Ephedra or clen - actually I think GW combined with more cardio and good diet is probably optimal.