Optical Properties of Skin Gloss and Development of a »Mizumizushii« Look Makeup Foundation

Abstract

In Japan, the term »mizumizushii« is used to describe a quality of »beauty«. We studied »apparently mizumizushii‐looking skin« and tried to develop makeup products that »make the skin look mizumizushii« which is one of the characteristics of beauty. To accomplish this what constitutes »mizumizushii‐looking skin« and »non mizumizushii‐looking skin« first had to be defined. Hence, sensory evaluations were performed on 100 women. The results showed that these panelists could be classified into two groups: 25 women »having mizumizushii‐looking skin« and 75 women »having skin without a mizumizushii look«. Further, it was revealed that the »skin without a mizumizushii look« could be classified into two groups, those with dry‐looking skin and those with excessively oily‐looking skin. We then succeeded in qualitatively classifying the appearance of the skin of these three groups on the basis of the difference in a value obtained for optical properties analyzed under specified conditions. Moreover, results of studies on possible qualitative classification of these groups using Z1, the newly discovered optical parameter for optical properties of the skin, showed an apparent relationship with the surface morphology (homogeneity on a micron scale). Based on the findings on the optical properties of »mizumizushii‐looking skin«, we designed a makeup film imparting the »mizumizushii look«, which in turn led to the development a »mizumizushii look« makeup foundation.

Development of Measurement Instrument for Optical Properties of Human Skin in Vivo

“…of Engineering, Shibaura Institute of Technology, 3-7-5 Toyosu Koto-ku, Tokyo 135-8548. FAX: 03-5859-8001 E-mail: na14102@shibaura-it.ac.jp researchers have investigated the appearance of skin in various fields, such as cosmetics [1], medicine [2], and computer graphics [3]. However, no one has successfully determined an evaluation of skin based on physical quantities [4].…”