. . "Retinol is one of the animal forms of vitamin A. It is convertible to other forms of vitamin A, and the |FRAME: Retinyl-Esters \"retinyl ester\"| derivative of the alcohol serves as the storage form of the vitamin in animals. |FRAME: RETINAL Retinal|, the aldehyde form of vitamin A, is essential for vision, and |FRAME: RETINOATE|, the acid form, is essential for skin health and bone growth. Retinol is produced in the body from the hydrolysis of |FRAME: Retinyl-Esters \"retinyl esters\"|, and from the reduction of |FRAME: RETINAL|."^^ . . . "all-trans-retinol"^^ . "Vitamin A1"^^ . "trans-retinol"^^ . "all-trans-retinol"^^ . "Vitamin A"^^ . "retinol"^^ . . "all-trans-retinol"^^ .