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
Example Sentences
Recent Examples on the Web The formula is packed with moisture-boosting hyaluronic acid, skin-evening niacinamide, and the brands signature barrier-protecting ceramide trio, so your skin remains soft and hydrated all day long. 
Lindsay Colameo, Peoplemag, 17 Aug. 2022 Its fine mist is infused with acne-fighting niacinamide and sodium hyaluronate. Jacqueline Saguin, Good Housekeeping, 26 July 2022 For those looking to target dark circles, its brightening niacinamide is a great dark spot-fighting addition to your skincare routine. Jessica Teich, Good Housekeeping, 29 June 2022 There's a gentle micellar cleanser, eye cream, daily moisturizer, collagen serum, and a night cream packed with skin-firming niacinamide. Ariel Scotti, PEOPLE.com, 5 July 2022 Wnek also regularly weighs in on the benefits of skincare ingredients like vitamin C, retinol and niacinamide. Catharine Malzahn, Good Housekeeping, 6 June 2022 Then there’s the Barrier Restore Cream, a rich moisturizer that repairs and strengthens the skin barrier with shea butter that contains five fatty acids, squalane to calm, acai to fight free radicals with antioxidants, and peptides and niacinamide. Celia Shatzman, Forbes, 15 June 2022 Vitamin C and niacinamide also help even skin tone and brighten, among other anti-aging benefits. Nicole Saporita, Good Housekeeping, 7 June 2022 Brighten up and deflate bags with this GH Seal star Mary Kay cream containing skin tone-evening niacinamide, also a winner of the GH Beauty Lab’s eye cream test. Catharine Malzahn, Good Housekeeping, 25 May 2022 See More
Lindsay Colameo, Peoplemag, 17 Aug. 2022 Its fine mist is infused with acne-fighting niacinamide and sodium hyaluronate. Jacqueline Saguin, Good Housekeeping, 26 July 2022 For those looking to target dark circles, its brightening niacinamide is a great dark spot-fighting addition to your skincare routine. Jessica Teich, Good Housekeeping, 29 June 2022 There's a gentle micellar cleanser, eye cream, daily moisturizer, collagen serum, and a night cream packed with skin-firming niacinamide. Ariel Scotti, PEOPLE.com, 5 July 2022 Wnek also regularly weighs in on the benefits of skincare ingredients like vitamin C, retinol and niacinamide. Catharine Malzahn, Good Housekeeping, 6 June 2022 Then there’s the Barrier Restore Cream, a rich moisturizer that repairs and strengthens the skin barrier with shea butter that contains five fatty acids, squalane to calm, acai to fight free radicals with antioxidants, and peptides and niacinamide. Celia Shatzman, Forbes, 15 June 2022 Vitamin C and niacinamide also help even skin tone and brighten, among other anti-aging benefits. Nicole Saporita, Good Housekeeping, 7 June 2022 Brighten up and deflate bags with this GH Seal star Mary Kay cream containing skin tone-evening niacinamide, also a winner of the GH Beauty Lab’s eye cream test. Catharine Malzahn, Good Housekeeping, 25 May 2022 See More Word History
First Known Use
1942, in the meaning defined above
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