2018 年 42 巻 4 号 p. 252-256
Although everyone knows the social usefulness of cosmetics, it causes various skin disorders when consumers use incorrect. Dermatologists should choose not only the treatment of dermatitis, but also they should investigate to use patch testing about their cosmetics, and should suggest to their patients which cosmetics is useful for their weak skin to keep the quality of daily life. So the physician should actively do patch testing to pursue the cause component of cosmetics, which requires cooperation with the company. In order to maintain the safety of cosmetics, I believe that it is necessary to have a place where doctors and chemists cooperate to examine them to establish a proper cosmetic component test.