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

Like benzoyl peroxide, topical retinoids can also be strong and irritating. —Jenna Ryu, SELF, 16 Aug. 2024

Retinol or benzoyl peroxide products can make your skin more sensitive, so start with a gentle exfoliant. —Kelly Burch Updated, Verywell Health, 11 July 2024

Body washes that include ingredients like benzoyl peroxide or zinc pyrithione can effectively reduce skin bacteria. —Suchandrima Bhowmik, Health, 7 July 2024

Related Articles To make matters worse, even the typical OTC acne products often contain drying agents like benzoyl peroxide and salicylic acid, which can strip the skin of moisture and accelerate aging. —WWD, 2 July 2024

Word History

First Known Use

1867, in the meaning defined above

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

Medical Definition

benzoyl peroxide

noun

: 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.