| abstract |
[Purpose] To provide a W / O emulsion composition that is excellent in terms of storage stability, skin safety, and usability, and can be used as a skin external preparation in cosmetics, quasi drugs, pharmaceuticals, and the like. And [Structure] A W / O emulsified composition comprising (a) as an emulsifier and further containing (b) and (c). Here, (a) is a copolymer obtained by polymerizing 2-methacryloyloxyethyl phosphorylcholine and a hydrophobic methacrylic ester, (b) is a polyhydric alcohol, and (c) is a higher alcohol and / or a higher fatty acid. |