Benzoyl peroxide is a well-known ingredient for fighting acne. Available in over-the-counter (OTC) gels, cleansers, and spot treatments, this ingredient comes in different concentrations for mild to moderate breakouts. While benzoyl peroxide can effectively get rid of bacteria and dead skin cells that clog your pores, it has limitations. Benzoyl peroxide works to treat and prevent acne by killing bacteria underneath the...