(EN) Provided is a skin cosmetic containing a water-soluble polymer having a cyclic structure in the main chain or a side chain, a water-soluble polymer having a dimethyl group or a trimethylamine group, and a water-soluble polymer that forms a film at room temperature. Also provided is a method for evaluating the elasticity of a cosmetic, the method including: measuring the area (first area) of a wetfilm and the area (second area) of a dry film formed from a cosmetic containing a substance of which the firmness is measured, a water-soluble polymer that forms a film at room temperature, and a colored substance; and calculating the ratio of the second area to the first area.
(ZH) 本发明提供一种皮肤用化妆品及化妆品的弹力感的评价方法，所述皮肤用化妆品含有在主链或侧链具有环状结构的水溶性高分子及具有二甲基或三甲基氨基的水溶性高分子以及在室温下形成覆膜的水溶性高分子，所述化妆品的弹力感的评价方法包括：分别测量未干燥覆膜的面积即第一面积及干燥覆膜的面积即第二面积，并计算第二面积相对于第一面积的比，所述未干燥覆膜的面积即第一面积及干燥覆膜的面积即第二面积由含有待测量弹力感的物质、在室温下形成覆膜的水溶性高分子及着色物质的化妆品形成。