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 fragrance- and soap-free face wash lifts away buildup from the day—dirt, oil, heat-wave sweat, even the stubbornest eye makeup—with oat flour and niacinamide, all while keeping your skin barrier feeling calm and collected. —Sophia Panych, Allure, 16 Sep. 2025

Harnessing the benefits of niacinamide, the top-seller protects from both UVA rays (responsible for visible aging) and UVB ones (those that actually cause burns). —Stacia Datskovska, Footwear News, 12 Sep. 2025

Olay Regenerist Micro-Sculpting Cream The cream is formulated with skin-nourishing ingredients, like niacinamide to brighten the skin and strengthen its moisture barrier, amino peptides to firm and sculpt, and hydrating hyaluronic acid to plump fine lines and wrinkles. —Alicia Geigel, Southern Living, 11 Sep. 2025

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

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