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benzoyl peroxide
noun
: 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
Recent Examples on the Web
So, strong actives like salicylic acid, benzoyl peroxide, and tea tree oil are likely too harsh and can irritate the bump even more.
—Jenna Ryu, SELF, 1 Nov. 2024
Henry agrees and adds parabens, sulfates, any forms of retinoids or retinol, benzoyl peroxide, and other harsh exfoliants to the list of things to avoid.
—Audrey Noble, Vogue, 23 Oct. 2024
In testing more than 100 benzoyl peroxide products from six states—all commercially available—researchers discovered that roughly one-third of the products contained high levels of benzene.
—Elizabeth Yuko, Health, 17 Oct. 2024
Researchers tested more than 100 benzoyl peroxide acne products available at major retailers in six states.
—Anna Edney/bloomberg, TIME, 7 Oct. 2024
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Word History
First Known Use
1867, in the meaning defined above
Dictionary Entries Near benzoyl peroxide
Cite this Entry
“Benzoyl peroxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/benzoyl%20peroxide. Accessed 22 Nov. 2024.
Kids Definition
benzoyl peroxide
noun
ben·zo·yl peroxide
ˈben-zə-ˌwil-,
-ˌzȯil-
: a white crystalline compound used in bleaching and in medicine especially in the treatment of acne
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