Damn it has to suck to get acne. I rather loose my hair then get acne. I have a few friends who's backs looked like a Dominos Pizza with extra sauce. But to the point, i am fortunate enough to not get any acne with test or any other compund for that matter. Acne is caused either by impurities in the gear or your body may be sensitive to hormonal fluctuations imposed by some esters.