La Roche-Posay Effaclar Duo Dual Action Acne Spot Treatment Cream with Benzoyl Peroxide is the only acne treatment available with micronized benzoyl peroxide (5. 5%) and Lipo Hydroxy Acid to treat acne deep in the skin. Micro-exfoliating Lipo-Hydroxy Acid provides precise cell by cell exfoliation to clear away cellular debris and oil. | La Roche-Posay Effaclar Duo Benzoyl Peroxide Acne Treatment | Dermstore