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

Belif's The True Cream Aqua Bomb is packed with the most hydrating ingredients on the block, like hyaluronic acid, niacinamide, and a ton of herbal goodies (like lady’s mantle) to soothe and cool your skin. —Lily Wohlner, Allure, 29 Nov. 2025

Paired with Laduora’s 8Pepta Serum—a peptide-, hyaluronic-acid-, and niacinamide-rich formula included in the introductory kit—the routine becomes both targeted and sensorial. —Adam Hurly, Robb Report, 29 Nov. 2025

The formula contains niacinamide, squalane, and a peptide lipid complex to tackle a variety of skincare concerns, including fine lines and wrinkles, dullness, uneven skin tone and texture, and loss of elasticity. —Alicia Geigel, Southern Living, 27 Nov. 2025

They are infused with high-quality ingredients, such as caffeine, niacinamide and hyaluronic acid, to help reduce puffiness and brighten dark circles. —Bestreviews, Mercury News, 23 Nov. 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