I use muscle techs crea corei have always had great results with it personally and dont mind spending a little extra (30 for about 2 1/2 month to 3 month supply)and bodybuilding.com has great sales (buy one get one free so in reality it was 30 for5-6months worth)not sure if anyone has any advice against thisi mean it works just as well to mei pretty much just keep an eye out for sales