Friction Phenomena in Make-Up Process

Abstract

The friction of make-up cosmetics such as cosmetic powder, foundation, and nail enamel was outlined. Although the friction characteristics of cosmetics, especially make-up cosmetics, are important factors that affect the tactile texture and finish, there are few reports on this topic. Here, I show some latest results on the evaluation by the sinusoidal-motion friction evaluation system and in-situ observation type tactile sensing system. Findings about delicate sensations such as moist and smooth feeling and interfacial phenomena that occur on the skin surface will be useful in designing and developing new cosmetic ingredients and formulations.