Skin cosmetics and methods for evaluating firmness of cosmetics

摘要

A skin cosmetic comprising a water-soluble polymer having a cyclic structure in the main chain or side chain, a water-soluble polymer having a dimethyl group or a trimethylamino group, and a water-soluble polymer which forms a film at room temperature, and The area of the undried film (first area) and the area of the dried film (second area) formed from the cosmetic substance containing the substance whose sensation is measured, the water-soluble polymer that forms a film at room temperature, and the coloring substance ), And calculating the ratio of the second area to the first area.