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 deodorant is infused with probiotics and includes ingredients like niacinamide and mandelic acid to support the skin barrier, even tone, and help balance odor, without relying on aluminum. —Pauleanna Reid, Forbes.com, 9 July 2025

The product additionally contains niacinamide, adenosine, and low-molecular collagen for anti-aging benefits, along with hyaluronic acid, panthenol, and ceramides for hydration. —Katie Decker-Jacoby, StyleCaster, 8 July 2025

The serum for greasy skin has salicylic acid; for pigmentation has niacinamide; for first signs of aging has bakuchiol, and for advanced signs of aging has retinol, at 0.3 percent. —Jennifer Weil, Footwear News, 1 July 2025

There's hyaluronic acid for hydration, niacinamide to soothe irritation, and three essential ceramides to improve the skin barrier. —Clara McMahon, People.com, 19 June 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