salicylic acid

noun

sal·​i·​cyl·​ic acid ˌsa-lə-ˈsi-lik- 

: a crystalline phenolic acid C₇H₆O₃ that is used medicinally especially as a skin exfoliant and in the form of salts and other derivatives as an analgesic and antipyretic compare aspirin

Examples of salicylic acid in a Sentence

Recent Examples on the Web

This shampoo, for instance, contains salicylic acid to gently exfoliate and stimulate the scalp as well as strengthening molecules that penetrate deep into the cortex to minimize breakage. — Ellie Davis, Vogue, 22 Oct. 2026

One skin care acid of note that’s an exception to this rule is salicylic acid. — Kara McGrath, Allure, 22 Oct. 2026

For milder forms of face acne, dermatologists may recommend face washes or creams containing benzoyl peroxide, salicylic acid or retinoids such as adapalene. — Adithi Ramakrishnan, Los Angeles Times, 13 Oct. 2026

Prequel’s Gleanser is up for the challenge with a meticulous blend of one percent salicylic acid to clear away surface oils and dead skin, along with zinc PCA to keep sebum in check. — Jenny Jin, Glamour, 29 Sep. 2026

Word History

Etymology

French salicylique, from salicyle, the group HOC₆H₄CO, from salicine salicin + -yle -yl

First Known Use

1840, in the meaning defined above

Rhymes for salicylic acid

• antacid
• placid

Kids Definition

salicylic acid

noun

sal·​i·​cyl·​ic acid ˌsal-ə-ˌsil-ik- 

: a weak acid used especially in the form of salts to relieve pain and fever

Medical Definition

salicylic acid

noun

sal·​i·​cyl·​ic acid ˌsal-ə-ˌsil-ik- 

: a crystalline phenolic acid C₇H₆O₃ that is the ortho form of hydroxybenzoic acid and is used especially in making pharmaceuticals and dyes, as an antiseptic and disinfectant especially in treating skin diseases, as a keratolytic agent for skin exfoliation, and in the form of salts and other derivatives as an analgesic and antipyretic and in the treatment of rheumatism see aspirin