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
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This ‘Stanley’ of Electric Toothbrushes As the name suggests, the Brightening Eye Stick is a compact, easy-to-use balm formulated with caffeine, niacinamide, and peptides, all of which help combat fine lines and tighten the appearance of the skin.
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Robyn Merrett, StyleCaster, 23 May 2025
Clean chemical filters protect skin from the sun, niacinamide minimizes damage and hyperpigmentation, and vitamin E, watermelon seed oil extract and glycerin deeply hydrate, calm, soothe and reduce redness.
—Celia Shatzman, Forbes.com, 20 May 2025
What are the benefits of using niacinamide in a skin-care routine?
—Jenny Berg, Vogue, 19 May 2025
With two percent salicylic acid, the formula has niacinamide and glycerin to quench thirsty skin.
—Jenny Berg, Allure, 17 May 2025
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Robyn Merrett, StyleCaster, 23 May 2025
Clean chemical filters protect skin from the sun, niacinamide minimizes damage and hyperpigmentation, and vitamin E, watermelon seed oil extract and glycerin deeply hydrate, calm, soothe and reduce redness.
—Celia Shatzman, Forbes.com, 20 May 2025
What are the benefits of using niacinamide in a skin-care routine?
—Jenny Berg, Vogue, 19 May 2025
With two percent salicylic acid, the formula has niacinamide and glycerin to quench thirsty skin.
—Jenny Berg, Allure, 17 May 2025
See All Example Sentences for niacinamide
Cite this Entry
“Niacinamide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/niacinamide. Accessed 4 Jun. 2025.
Copy CitationKids 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
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