SCREENING COMPOSITION CONTAINING AT LEAST ONE DIBENZOYLMETHANE DERIVATIVE AND AT LEAST ONE 3-(2-AZACYCLOALKYLIDNE)-1, 3-DIHYDRO INDOLE-2-ONE DERIVATIVE, AND PHOTOSTABILIZING METHOD

摘要

PPROBLEM TO BE SOLVED: To obtain a cosmetic or a composition for dermal use with improved photostability of dibenzoylmethane derivatives, and to provide a method for improving photostability of the dibenzoylmethane derivatives. PSOLUTION: The composition comprises (a) a type of UV screening agents derived from dibenzoylmethane, and (b) a 3-(2-azacycloalkylidene)-1, 3-dihydroindole-2-one derivative in a cosmetically acceptable medium. The photostability of the dibenzoylmethane derivative is improved by combining the dibenzoylmethane derivative with the 3-(2-azacycloalkylidene)-1, 3-dihydroindole-2-one derivative. PCOPYRIGHT: (C)2004,JPO&NCIPI