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
Glycerin and squalane hydrate, while niacinamide and colloidal oatmeal soothe inflamed skin.
—
Jessica Kasparian, SELF, 18 Apr. 2025
The formula combines powerful but gentle ingredients like tranexamic acid, kojic acid, and niacinamide to tackle dark spots, acne scars, and uneven tone.
—Christa Joanna Lee, Allure, 15 Apr. 2025
Infused with hyaluronic acid—a mainstay in wrinkle-filling—the serum also has niacinamide, which refines the pores while strengthening the skin barrier.
—Jenny Berg, Vogue, 15 Apr. 2025
Key ingredients: Aloe, niacinamide, hyaluronic acid, green tea, bisabolol, vitamin E / Fragrance: Yes / Size: 6 oz.
—Marilyn La Jeunesse, Glamour, 14 Apr. 2025
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Jessica Kasparian, SELF, 18 Apr. 2025
The formula combines powerful but gentle ingredients like tranexamic acid, kojic acid, and niacinamide to tackle dark spots, acne scars, and uneven tone.
—Christa Joanna Lee, Allure, 15 Apr. 2025
Infused with hyaluronic acid—a mainstay in wrinkle-filling—the serum also has niacinamide, which refines the pores while strengthening the skin barrier.
—Jenny Berg, Vogue, 15 Apr. 2025
Key ingredients: Aloe, niacinamide, hyaluronic acid, green tea, bisabolol, vitamin E / Fragrance: Yes / Size: 6 oz.
—Marilyn La Jeunesse, Glamour, 14 Apr. 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 22 Apr. 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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