glycolic acid

noun

gly·​col·​ic acid (ˌ)glī-ˈkä-lik- 

variants or glycollic acid

: an alpha hydroxy acid C₂H₄O₃ found especially in unripe grapes and sugar beets and used especially in textile and leather processing and in skin-care treatments especially as an exfoliant

Examples of glycolic acid in a Sentence

Recent Examples on the Web

The formula also features alpha hydroxy acids—lactic and glycolic acids—and squalane and niacinamide to hydrate and calm the skin. —Deanna Pai, Allure, 13 Dec. 2024

In 2024, our fastest-growing product was our glycolic acid toner, despite being in our lineup for more than seven years. —Noor Lobad, WWD, 13 Dec. 2024

Meanwhile, the Active Serum is a powerhouse blend of salicylic acid, glycolic acid, phytic acid, and a mixture of botanical extracts to penetrate deep into congested pores and target acne. —Conçetta Ciarlo, Vogue, 3 Dec. 2024

Avoid ingredients like alcohol, camphor, glycolic acid, fragrances, lactic acid, menthol, sodium lauryl sulfate, or urea. —Mark Gurarie, Verywell Health, 2 Dec. 2024

Word History

Etymology

International Scientific Vocabulary glycol + -ic entry 1

First Known Use

1852, in the meaning defined above

Medical Definition

glycolic acid

noun

variants also glycollic acid

: an alpha hydroxy acid C₂H₄O₃ that is oxidized to glyoxylic acid in photosynthesis, is used as an agent to produce chemical peels in cutaneous rejuvenation treatments, and is the major toxic metabolite in ethylene glycol poisoning

called also hydroxyacetic acid