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

Some green-flag ingredients include ceramides (which strengthen and support the skin barrier) and niacinamide (which soothes and calms the skin). —Madison Yauger, People.com, 25 Jan. 2025

Formulated with sensitive skin types in mind, this is infused with niacinamide, allantoin, and aloe to deliver a host of soothing, smoothing, and hydrating benefits similar to your favorite face moisturizer. —Kiana Murden, Vogue, 24 Jan. 2025

This two-time Allure Best of Beauty winner has a refreshing gel texture chock-full of cica, niacinamide, and glycerin to calm redness and plump skin. —Sarah Han, Allure, 23 Jan. 2025

Sensitive skin: Go for fragrance-free, dye-free, hypoallergenic products with soothing ingredients like aloe vera, niacinamide, or chamomile. —Amanda Svachula, Health, 13 Jan. 2025

Word History

First Known Use

1942, in the meaning defined above

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