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 formula boasts an SPF of 40 and is formulated with skin-boosting ingredients niacinamide, hyaluronic acid and green tea extract. —Catherine Santino, PEOPLE, 8 Sep. 2025

Infused with amino peptides to firm and smooth the skin, niacinamide to nourish the skin barrier, and hyaluronic acid for a plumping touch, Olay’s lifting cream offers moisture with an extra dose of rejuvenating benefits. —Jenny Berg, Vogue, 4 Sep. 2025

The patch's backbone is made of hyaluronic acid—a gooey polymer that's a common skincare ingredient—mixed with either antibacterial agents (including salicylic acid and Cannabis sativa extract) or anti-inflammatory agents (including niacinamide and chamomile extract). —Hannah Millington, MSNBC Newsweek, 2 Sep. 2025

Their formulations feature peptides, niacinamide, and hyaluronic acid, but are always anchored in dermatological research. —Stephan Rabimov, Forbes.com, 2 Sep. 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