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

Hyaluronic acid, niacinamide, amino acids Fragrance: Fragrance-free Size: 1.7 fl. —Alanna Martine Kilkeary, Glamour, 1 May 2025

The brand’s Hyaluronic Rose Complex includes Damascus rosewater and 11 types of hyaluronic acid to nourish skin, as well as niacinamide, working to improve the appearance of skin texture and minimize pores, plus plump and firm. —Celia Shatzman, Forbes.com, 29 Apr. 2025

Layered onto this base are carefully selected active ingredients (e.g., hyaluronic acid, niacinamide, or vitamin C). —Xandra Harbet, USA Today, 26 Apr. 2025

Look to the key vitamins found in the bouncy formula, including vitamin A (retinol), vitamin B (niacinamide), and vitamin C (yuzu extract). —Sarah Han, Allure, 25 Apr. 2025

Word History

First Known Use

1942, in the meaning defined above

Rhymes for niacinamide

• acrylamide
• procainamide
• sulfonamide
• sulphonamide
• acetazolamide
• polyacrylamide
• 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