Development of Makeup Products Improving the Perceptual Appearance of Dynamically Moving Cheek

Recent research shows that age perceptions from dynamically moving faces are judged by (1) the appearance of the cheek and (2) the dynamic characteristics, such as the fluctuations of “overexposed area” and “the amount of fine linear structures area around the pore”, which increase with aging (77th and 78th SCCJ conference). This study attempted to develop a makeup product which was able to change the age impression, by improving the appearance of dynamically moving cheek. First, this study designed a makeup layer that reduced the fluctuations of the “overexposed area” and “the amount of fine linear structures area around the pore” appearing on the moving cheek. A polymer film, which was flexible enough to follow the dynamically moving skin, and a high optical diffusion particle were selected by an in vitro screening method with artificial skin with pores. Then, a makeup sample prepared with the flexible polymer and particle was applied to the face, and the improvement of the appearance of the moving cheek was evaluated. As a result, the designed makeup layer was able to reduce the fluctuations of the “overexposed area” and “the amount of fine linear structures area around the pore”. The flexible polymer was speculated to hold the high diffusion particles uniformly even in a dynamically moving condition, resulting in the improvement of the perceptual appearance of dynamically moving face that increases with aging.