SUBSTANCE FOR IMPROVING SKIN BARRIER FUNCTION, SUBSTANCE FOR AMELIORATING SKIN WRINKLE, SKIN CARE PREPARATION FOR EXTERNAL USE, COSMETIC AND QUASI-DRUG COMPRISING THE SAME SUBSTANCE

摘要

PROBLEM TO BE SOLVED: To obtain a highly safe substance for improving skin barrier functions having improving actions on the lowered skin barrier functions and ameliorating actions on skin wrinkles and further an excellent feeling of use.;SOLUTION: The substance for improving the skin barrier functions is at least one kind of heterocyclic compound selected from the group consisting of a compound represented by formula (1) (wherein, X denotes CH or nitrogen atom; Y denotes carbamoyl group, carboxy group, an alkoxycarbonyl group, a hydroxyalkyl group, amino group or an aminoalkyl group; and R denotes an alkyl group, with the proviso that Y is a substituent bound to the carbon atom at the 2- or the 4-position of the heterocyclic ring) and a nuclearly hydrogenated substance of the compound.;COPYRIGHT: (C)2004,JPO