benzoyl peroxide

noun

Definition of benzoyl peroxide 

: a colorless to white crystalline compound C14H10O4 that is used as a bleaching agent (as for whitening flour), as a catalyst for the synthesis of polymers (such as polystyrene), and medically as an antibacterial and keratolytic agent especially for the topical treatment of acne

Examples of benzoyl peroxide in a Sentence

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According to the American Academy of Dermatology, benzoyl peroxide can remove the bacteria that causes acne. Janell M. Hickman, Seventeen, "5 Life-Changing Skincare Tricks Women of Color Need To Know," 1 Jan. 2018 Rather than squeezing, soak a cotton swab in benzoyl peroxide and dab it on the zit. Janell M. Hickman, Seventeen, "5 Life-Changing Skincare Tricks Women of Color Need To Know," 1 Jan. 2018 In terms of topicals, you may be instructed to use benzoyl peroxide (at an Rx strength), topical antibiotics, topical retinoids (like Tazorac, or Retin-A), or topical dapsone, like Aczone. Karina Hoshikawa, Teen Vogue, "Chin Acne: How to Cure and Prevent It," 1 June 2018 On the flip side, a 2006 study observed how benzoyl peroxide is nearly twice as irritating as tea tree oil. Ashley Weatherford, The Cut, "A Guide to Megan Markle’s Favorite Anti-Acne Oil," 13 July 2018 For example, retinol and other exfoliating ingredients—salicylic acid, glycolic acid, and benzoyl peroxide—should not be used at the same time because the skin can get really dry. Rachel Jacoby Zoldan, SELF, "The 9 Best Skin-Care Tips I’ve Learned in 10 Years of Being a Beauty Editor," 13 July 2018 Typically, this is as easy as lathering up with a body wash containing sulfur or benzoyl peroxide. Macaela Mackenzie, Allure, "How to Tell If Your Itchy Skin Is Actually Heat Rash This Summer," 2 May 2018 Like, is the water in Rosewood secretly filtered with salicylic acid and benzoyl peroxide? Lindsay Schallon, Glamour, "Shay Mitchell on the Secrets Behind Her Great Skin," 5 July 2018 Both salicylic acid and benzoyl peroxide are effective OTC acne medicines. Joe Graedon, M.s., And Teresa Graedon, Houston Chronicle, "Changing washcloths daily helps control acne," 23 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'benzoyl peroxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of benzoyl peroxide

1867, in the meaning defined above

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Last Updated

4 Oct 2018

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The first known use of benzoyl peroxide was in 1867

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More Definitions for benzoyl peroxide

benzoyl peroxide

noun

Medical Definition of benzoyl peroxide 

: a white crystalline flammable compound C14H10O4 used in bleaching and in medicine especially in the treatment of acne

Note: Benzoyl peroxide is marketed the trademark Epiduo when used in combination with adapalene.

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