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

Glycerin is another beneficial humectant ingredient. —Matt Fuchs, TIME, 6 Feb. 2025

Look for formulas with humectants like glycerin or aloe vera, which attract moisture, and lightweight emollients like shea butter, argan oil, or jojoba oil to soften and nourish strands. —Sarah Hoffmann, Allure, 22 Dec. 2024

The three most common forms are emollients, humectants, and occlusives. —Audrey Noble, Vogue, 23 Oct. 2024

Also available in over-the-counter products including serums and creams, the humectant can be added to any skincare regime. —Jenny Berg, Allure, 24 Jan. 2025

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

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