| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of improving salt resistance of a gel structure produced by a carboxyvinyl polymer. SOLUTION: This quasi drug for skin external use contains (1) 1 kind or≥2 kinds selected from glycyrrhizinic acid, glycyrrhetinic acid and their salts, (2) a carboxyvinyl polymer and (3) trimethylglycine. As the glycyrrhizinic acid, glycyrrhetinic acid and their salts, glycyrrhizinic acid dipotassium is preferable, and its content is preferably 0.01-0.1 mass %. As the carboxyvinyl polymer, an acrylic acid-acrylic acid (a 10-20C) alkyl ester copolymer and/or its salt is preferable. COPYRIGHT: (C)2005,JPO&NCIPI
|
