Never had a serious problem with acne, just a few pimples in my Tzone. ONLY THING THAT EVER worked for me was Proactiv. My pimples were gone within 5 days and have never come back as long as I keep using. My sister who had SEVERE Acne tried everything. While she still has a little scarring from all the Acne Proactiv cleared all of her active pimples and has kept them off. With a tiny bit of makeup, a girl who once wouldnt even go shopping w. me now looks flawless. Im tellin ya, Proactiv. I SWEAR by it