humectant

noun

hu·​mec·​tant hyü-ˈmek-tənt 

: a substance that promotes retention of moisture

humectant adjective

Examples of humectant in a Sentence

Recent Examples on the Web

My ideal formula combines humectants that draw in moisture, emollients that smooth the skin, and just enough light-reflecting ingredients to leave behind a healthy glow. — Tiana Randall, Forbes.com, 17 July 2026

Thirsty skin will appreciate that this lightweight formula contains hyaluronic acid and humectants to hydrate from within, as well as draw in additional moisture. — Catharine Malzahn, Allure, 13 July 2026

The skin isn’t just a passive barrier that accepts humectants, peptides, and other ingredients and keeps out external aggressors like pollutants and bacteria. — Deanna Pai, Vogue, 6 July 2026

Glycerin, a humectant, provides an instant plumping effect that lasts hours post-application. — Sophie Wirt, InStyle, 19 June 2026

Word History

Etymology

Latin humectant-, humectans, present participle of humectare to moisten, from humectus moist, from humēre to be moist — more at humor entry 1

First Known Use

circa 1867, in the meaning defined above

Rhymes for humectant

• expectant
• protectant
• disinfectant

Medical Definition

humectant

1 of 2 adjective

hu·​mec·​tant hyü-ˈmek-tənt 

: promoting the retention of moisture

humectant properties

humectant materials

humectant

2 of 2 noun

: a substance (as glycerol or sorbitol) that promotes retention of moisture