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

Here, mung bean seed extracts are paired with niacinamide, which can regulate excess oil and improve the look of pores, plus glycerin and hyaluronic acid to draw moisture into the skin. — Christa Joanna Lee, Allure, 20 Aug. 2026

Look for ingredients kojic acid, azelaic acid or niacinamide to gradually even out discoloration. — Leslie Baumann, Miami Herald, 20 Aug. 2026

Hydrolyzed hyaluronic acid delivers hydration and keeps skin smooth and glowing, plus there’s niacinamide and licorice extract to brighten and even the complexion. — Celia Shatzman, Forbes.com, 18 Aug. 2026

But realizing that Dollar Tree sells hyaluronic and niacinamide options is a game changer. — Alicia Geigel, Southern Living, 15 Aug. 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