Benzoyl Peroxide

Benzoyl peroxide (BPO) has been an important component of topical therapy for acne vulgaris for more than five decades due to its ability to markedly reduce Propionibacterium acnes and inflammatory acne lesions and its ability to moderately reduce noninflammatory acne lesions. 

*Information courtesy of The Journal of Clinical and Aesthetic Dermatology

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3016935/