EXTERNAL PREPARATION FORMULATED WITH VITAMIN C DERIVATIVE AND OIL-SOLUBLE LICORICE EXTRACT

摘要

PROBLEM TO BE SOLVED: To provide an external preparation formulated with a vitamin C derivative and oil-soluble licorice extracts and solve problems that the preparation has delicate resistance to light and heat, poor temporal stability and, when using a specific kind of surfactant, causes stimulation to the skin. SOLUTION: This external preparation is provided by being formulated with (A) to (D). (A) 0.01-10.0 wt.% one or more kind of vitamin C derivatives. (B) 0.001-30 wt.% oil-soluble licorice extracts. (C) 0.10-5.0 wt.% acrylamide/ soldium acryldimethyltaurate copolymer. (D) 0.01-1.0 wt.% polyoxyethylsorbitan monooleate (20E.O.) and/or sorbitan monooleate.