Cutaneous agent for external use containing a salt of a derivative of ascorbic acid, method of stabilizing agent for external use cutaneo.

摘要

a salt of the ester of higher fatty acid of ascorbic acid-2-phosphoric acid ester, said ester of higher fatty acid ester of ascorbic acid-2-phosphoric acid, by the following formula (1) being represented: in which R it is a residual group of an aliphatic carboxylic acid of 10 to 20 carbon atoms and 1,2 or 1,2-pentanediol-hexanediol.