Stridex Maximum Acne Pads have the highest level of acne-fighting medicine allowed in a non prescription formula (2% salicylic acid). They are recommended for cases of moderate acne to fight pimples and blackheads. Stridex face cleansing pads are alcohol-free for proven results without the burn. These face pads have effective skin cleansers that work to remove dirt, sweat and other impurities from the surface of the skin. The salicylic acid penetrates to unclog pores and dissolve deep-down oil. The pads even remove what soaps and face washes leave behind! The medication left behind from the salicylic acne pads continues working between uses and helps prevent new pimples from forming.