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

New & Noteworthy The Olay Summer Fizz Body Wash Collection is formulated with nourishing ingredients like niacinamide, pro-glycerin, lipids and a hyaluronic serum complex to deeply hydrate dry, thirsty skin to become visibly supple and dewy. —Adam Mills, MSNBC Newsweek, 13 Aug. 2025

Its formula includes niacinamide, which, with continued use, can make your skin tone look more even. —Justin Fenner, Robb Report, 31 July 2025

According to Libby, ingredients like niacinamide, hyaluronic acid, and ceramides can boost your skin’s moisture; peptides and retinoids can support collagen production; and, antioxidants and SPF 50 (or higher) can brighten and protect the skin. —Essence, 30 July 2025

Its hero ingredients include niacinamide (a.k.a. vitamin B3), known for minimizing pores and reducing fine lines, along with Premium Elastin from France, shea butter, and hyaluronic acid, all of which moisturize and plump skin for a more youthful, glowy appearance. —Melony Forcier, People.com, 29 July 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