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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
The microneedles — infused with phyto-retinol, niacinamide, and green tea — delivered ingredients effectively without causing discomfort, and post-use redness faded quickly, leaving skin smooth and refreshed.
—Jennifer Ford, People.com, 9 Jan. 2025
Plus, both chemical and mineral Korean sunscreens feature ingredients found in your favorite serums and moisturizers, like Centella asiatica (known as cica for short), allantoin, ceramides, hyaluronic acid, and niacinamide.
—Sarah Han, Allure, 3 Jan. 2025
Hair Therapy Density Boost Fullness Restore Scalp Serum is a non-greasy serum packed with skin-loving ingredients like active B3 (niacinamide) and active glycerin, clinically proven to boost hair density in 90 days – with noticeable results seen in as little as 30 days.
—Benedict Cosgrove, Newsweek, 19 Dec. 2024
The product contains hyaluronic acid, niacinamide, three essential ceramides, and peptides.
—Toni Sutton, People.com, 30 Dec. 2024
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Word History
First Known Use
1942, in the meaning defined above
Dictionary Entries Near niacinamide
Cite this Entry
“Niacinamide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/niacinamide. Accessed 21 Jan. 2025.
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
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