This is my one & only! I've been using it for ten years. Since starting this as a teenager, I've noticed a major reduction in my breakouts. I have combination skin - both dry (where dead skin builds up) & oily patches. Glycolic acid is an amazing exfoliator and a solution for both concerns. Sadly, they discontinued the "Oily" version and only sell the "Mild" now. They have the same ingredients, but I notice Mild is a little less effective.