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

Most sprays are made with 20 to 35% of this magnesium chloride solution, and some formulators may include humectants like glycerin and other soothing agents to offset the dryness and stickiness that the magnesium oil might have. —Audrey Noble, Vogue, 10 Oct. 2025

Heavy occlusives can trap debris and worsen breakouts; keep textures light, focus on humectants like glycerin or hyaluronic acid, and always, always add a broad-spectrum sunscreen. —Larry Stansbury, Essence, 7 Oct. 2025

The ultralight hydrator does everything a richer formula does for your barrier—protect (with honey, a humectant), strengthen (with ceramides), and moisture (with squalene)—but in a cooling gel texture that feels light and refreshing. —Sophia Panych, Allure, 16 Sep. 2025

Key Ingredients: Turnip Extract (rich in vitamins and minerals that lift hair from the root) and natural humectants (trap moisture for soft, breathable volume) Davines’ lightweight VOLU formula that instantly adds airy lift to limp strands. —Adam Hurly, Robb Report, 21 Aug. 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

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