Light skin peels of Glycolic an Salicylic acid are perfect to dissolve the stick oil and dirt that clogs your pores, we do these treatments at Red Lotus Skin Care Salon in Portland, Oregon. However, to prevent them using this in a daily serum with these ingredients, Bioclear by Jan Marini, breaks down the plugs daily and allows the skin to breath. By doing this the P. acnes bacteria is assisted to be kept in control preventing white heads. Sun block will keep you from getting dark marks from this process because the sun on an inflamed breakout will actually trigger skin to protect itself with melanin granules leaving a dark spot after acne is gone. Here is a great video of Jan Marini talking about acne prevention.