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

Of the best options out there, The Ordinary’s formula is fueled by 10% niacinamide plus 1% zinc to boosts brightness and smoothness in eight weeks. —Jenny Berg, Vogue, 13 June 2025

Though tranexamic acid is anti-inflammatory by nature, it's accompanied by antioxidant-rich humectants such as phytic acid, niacinamide, and sodium hyaluronate that help soothe sensitivity. —Sarah Han, Allure, 12 June 2025

Alternatively, people with oily skin might want to consider a moisturizer with niacinamide, which can reduce your pores, or hyaluronic acid, which hydrates and prevents your skin from over-producing oil. —Mia Huelsbeck, People.com, 10 June 2025

Look for products with ingredients like niacinamide and hyaluronic acid. —Stephanie Edwards, Discover Magazine, 30 Apr. 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