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

Additionally, niacinamide, hyaluronic acid, collagen, and vitamin B12 help to plump, even, and brighten the epidermis. — Essence Wiley, InStyle, 26 June 2026

Bestsellers include its Serum Body Washes, 5% AHA Deodorant Serums and Nourishing Body Oil — each formulated with ingredients such as niacinamide, squalane and glycolic acid. — Kathryn Hopkins, Footwear News, 26 June 2026

The gel-cream combines hyaluronic acid, niacinamide, panthenol, and squalane to hydrate and soothe without feeling greasy. — Christa Joanna Lee, Allure, 24 June 2026

This bestselling serum includes the aforementioned wonder ingredient alongside niacinamide to even skin tone and reduce the appearance of fine lines. — Claudia Fisher, Parents, 24 June 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