单词	retinol
释义	retinol /ˈrɛtɪnɒl / noun [mass noun] Biochemistry A yellow compound found in green and yellow vegetables, egg yolk, and fish-liver oil. It is essential for growth and for vision in dim light. Also called vitamin A. A carotenoid alcohol; chemical formula: C20H29OH. Opt for products that contain skin-lightening ingredients like retinol, vitamin C and licorice.... Retinoic acid is derived mainly by local synthesis through the enzymatic oxidation of retinol. Most skin types can benefit from retinol, a derivative of vitamin A. Origin 1960s: from retina + -ol.
随便看	first-choice first class first-class man first-classman first coat first come, first served First Consul first cost first course first cousin first cousin once removed first cousin twice removed first cross First-day first-day cover first-degree first-degree relative first derivative first desk first down first early first edition First Empire first-ever first family

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