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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
Some providers also recommend adding benzoyl peroxide to your treatment to further eliminate bacteria.
—
Sarah Bradley, Health, 6 Feb. 2025
Cetaphil's Gentle Clear Complexion-Clearing BPO Acne Cleanser is a benzoyl peroxide–loaded Best of Beauty winner that pairs well with this serum.
—
Sarah Han, Allure, 29 Jan. 2025
Try benzoyl peroxide to address blemish-prone skin. Dry Skin
For dry skin:
Look for gentle, hydrating cleansers that don't strip your skin of moisture.
—
Anna Giorgi, Verywell Health, 22 Jan. 2025
It's formulated with benzoyl peroxide and boasts antimicrobial properties that clear zits and prevent future breakouts.
—
Kiana Murden, Vogue, 19 Dec. 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 12 Feb. 2025.
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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