单词	provitamin
释义	provitamin noun pro·​vi·​ta·​min (ˌ)prō-ˈvī-tə-mən  : a precursor of a vitamin convertible into the vitamin in an organism Example Sentences Recent Examples on the Web This pick has provitamin B5 and serin, which are ingredients known for its lash-conditioning attributes. Daisy Maldonado, SELF, 13 Sep. 2022 To convert the provitamin D3 into vitamin D3 that helps our bodies, the tomatoes were treated with UVB light. Katie Hunt, CNN, 23 May 2022 Ingredients like biotin, peptides, hyaluronic acid, and panthenol (a provitamin of B5) come together in this formula from neuLash, which also contains pumpkin seed extract for lashes that look thicker and fuller. Health.com, 16 Sep. 2021 Sturdivant recommends this shampoo from her eponymous hair care line that's supercharged with hydrolyzed keratin, argan oil and provitamin B5. Noma Nazish, Forbes, 31 Jan. 2022 In addition to the high concentration of hydrating hyaluronic acid at the base of the formula, there are also ceramides, which help skin hold in moisture, and redness-reducing provitamin B5. Nykia Spradley, Allure, 25 Feb. 2021 Word History First Known Use 1927, in the meaning defined above Medical Definition provitamin noun pro·​vi·​ta·​min (ˈ)prō-ˈvīt-ə-mən  : a precursor of a vitamin convertible into the vitamin in an organism ergosterol is a provitamin of vitamin D
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