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

Beauty of Joseon Revive Eye Serum Retinal and niacinamide are popular ingredients in anti-aging serums due to their ability to even skin tone and firm wrinkles. —Gabriela Izquierdo, Southern Living, 10 Mar. 2026

The Kosas Revealer Skin Improving Foundation acted as the perfect canvas—the skin tint is lightweight, buildable, and packed with skin-improving ingredients like peptides, hyaluronic acid, and niacinamide. —Kaitlin Clapinski, InStyle, 8 Mar. 2026

Some pair it with brightening ingredients like niacinamide and vitamin C, collagen-supporting retinoids and peptides, and hydrating agents that subtly plump thinning skin. —Christa Joanna Lee, Allure, 8 Mar. 2026

Olay Super Serum Body Wash for Normal Skin Olay Super Serum Body Wash is formulated with ingredients such as vitamin E, collagen peptide, vitamin C, niacinamide, and BHA, which combine to create a powerful formula that hydrates, firms, brightens, evens, and smooths the skin. —Claire West, Parents, 27 Feb. 2026

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