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

Tea tree leaf water and niacinamide prevent breakouts and tackle redness, while glycerin, panthenol, and ceramides keep skin hydrated and supported. — Christa Joanna Lee, Allure, 7 Oct. 2026

The multitasking salve has copper tripeptides and niacinamide to address hyperpigmentation and boost overall skin elasticity. — Jenny Berg, Vogue, 6 Oct. 2026

This formula features mandelic acid for gentle exfoliation and niacinamide to brighten uneven tone. — Glamour, 2 Oct. 2026

The serum targets redness and dark spots through its potent combination of 10 percent azelaic acid and niacinamide. — Gina Vaynshteyn, StyleCaster, 30 Sep. 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