皮膚表面の光学的特性測定法開発とその応用

抄録

The purpose of this study was to scientifically characterize the gloss and transparency properties of the living skin surface for substantiating cosmetic efficacy.
For this purpose, authors developed the measuring methods and instruments, corresponding to sensory skin evaluation of cosmetic users.
The chart of “Microscopic Luster Meter” denoted the clear difference between bare skin and treated skin with lotion. By this methods, we can measure the gloss effect of the skin surface which was treated with many types of lotion and cream.
The “Skin Transparency Meter” we developed can denote the transparancy effect of the surface of treated skin.
Moreover, we can measured the skin color of inner side of upperarm of about 250 women in several districts of Japan. It was substantiated that the whiteness of bare skin of testing-panelist had relation to the UV-Ray quantity of the districts where they are living.