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Doris Day, MD, Dermatology, answeredBenzoyl peroxide (BP) is a staple of acne treatment in the United States. It is a safe and effective product for treating acne. It is available in a variety of formulations and concentrations, ranging from 1% to 10%. The gel formulations are generally more stable and are preferable to the creams and lotions. They also allow for a more consistent release of the active ingredient. BP cleansers are useful for application to large areas such as the chest and back and can conveniently be used in the shower.