Retinol

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Retinol is a hydrolytic metabolite of retinyl esters belonging to the group of vitamin A1 as an alcohol form. Retinol or other forms of vitamin A are fat-soluble vitamins that are found in food and used as a dietary supplement. Either of them is needed for vision, cellular development, maintenance of skin and mucous membranes, immune function and reproductive development. Dietary sources include fish, dairy products, and meat. The term vitamin A may refer to several related fat-soluble retinoids. Retinol is the alcohol form of vitamin A; retinal and retinoic acid are metabolites of retinol; and retinyl esters, such as retinyl palmitate and retinyl acetate, are forms used in storage and in some dietary supplements. In European Union cosmetics regulation, the INCI names Retinol, Retinyl Acetate, and Retinyl Palmitate are described as substances collectively known as vitamin A. As a supplement it is used to treat and prevent vitamin A deficiency, especially that which results in xerophthalmia...

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