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 shampoo nourishes the scalp with panthenol and niacinamide, while the conditioner fortifies strands with lipids for thicker-looking hair that resists breakage. — Lauren Jarvis-Gibson, Kansas City Star, 21 Oct. 2026

Its formula combines peptides, niacinamide, and exfoliating lipohydroxy acid to help skin look smoother and brighter, while keeping it hydrated for hours. — Jenny Berg, Vogue, 19 Oct. 2026

Formulated with ingredients like glutathione, kojic acid, turmeric, ceramides, vitamin C, and niacinamide, these patches help improve the look of hyperpigmentation and discoloration. — Vivien Lee, InStyle, 15 Oct. 2026

The formula also features willow bark water, niacinamide, and sodium hyaluronate to keep skin feeling balanced while targeting uneven texture and clogged pores. — Sarah Y. Wu, Glamour, 7 Oct. 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