niacinamide

noun

ni·​a·​cin·​amide ˌnī-ə-ˈsi-nə-ˌmīd 

: a compound C₆H₆N₂O of the vitamin B complex found especially as a constituent of coenzymes and used similarly to niacin

called also nicotinamide

Examples of niacinamide in a Sentence

Recent Examples on the Web

The formula is packed with skincare-grade ingredients like niacinamide for brightening and centella asiatica for calming. — Deanna Pai, Vogue, 10 July 2026

Its nourishing, moisturizing ingredients (hello, shea butter and coconut oil) prevent your skin from drying out, while calming niacinamide helps brighten and calm skin. — Sara Coughlin, Allure, 9 July 2026

The best products to use after shaving are those that combine hydration with barrier-supporting ingredients such as ceramides, glycerin, hyaluronic acid, colloidal oatmeal, panthenol, and niacinamide. — Emma-Jade Stoddart, Glamour, 5 July 2026

The Kérastase Nutritive Bain Satin Riche Shampoo is also packed with niacinamide. — Tamim Alnuweiri, InStyle, 5 July 2026

Word History

First Known Use

1942, in the meaning defined above

Rhymes for niacinamide

• acetazolamide
• polyacrylamide
• acrylamide
• cyanamide
• procainamide
• sulfonamide
• sulphonamide
• amide
• nicotinamide
• sulfanilamide

Kids Definition

niacinamide

noun

ni·​a·​cin·​amide ˌnī-ə-ˈsin-ə-ˌmīd 

: a compound of the vitamin B complex that is used like niacin

Medical Definition

niacinamide

noun

ni·​a·​cin·​amide ˌnī-ə-ˈsin-ə-ˌmīd 

: a bitter crystalline basic amide C₆H₆N₂O that is a member of the vitamin B complex and is formed from and converted to niacin in the living organism, that occurs naturally usually as a constituent of coenzymes, and that is used similarly to niacin

called also nicotinamide