niacinamide

noun

ni·​a·​cin·​amide ˌnī-ə-ˈsi-nə-ˌmīd How to pronounce niacinamide (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In addition to broad-spectrum SPF 30 protection, the formula contains hydrating ingredients like ceramides, niacinamide, and hyaluronic acid to help moisturize the skin barrier. Brigitt Earley, Glamour, 14 Mar. 2025 More medical grade skin-care brands are now creating products containing ceramides, niacinamide, and fatty acids to help strengthen and rebuild the skin barrier. Kiana Murden, Vogue, 13 Mar. 2025 Kojic acid and tranexamic acid work together to fade hyperpigmentation, while niacinamide helps smooth out bumps and supports your skin’s natural moisture barrier. Deanna Pai, Allure, 12 Mar. 2025 La Roche Posay’s moisturizer is made with nourishing ingredients like shea butter, niacinamide, and glycerin to lock in hydration for hours. Rylee Johnston, Travel + Leisure, 5 Mar. 2025 See All Example Sentences for niacinamide

Word History

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of niacinamide was in 1942

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Cite this Entry

“Niacinamide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/niacinamide. Accessed 18 Mar. 2025.

Kids Definition

niacinamide

noun
ni·​a·​cin·​amide ˌnī-ə-ˈsin-ə-ˌmīd How to pronounce niacinamide (audio)
: 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 How to pronounce niacinamide (audio)
: 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

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