Also keep in mind that benzoyl peroxide can irritate skin. If that happens, you might want to see a dermatologist. ($5 for 6 ounces; lasts about 2 to 3 months) An acne wash containing 10% benzoyl ...
Benzoyl peroxide is currently available in a number ... 2.5% BPO has similar efficacy to 0.1% adapalene in inflammatory acne, with both agents having a similar side effect profile.