The Relationship between Sensitive Skin and Stratum Corneum Morphology

Abstract

“Sensitive skin” is an important problem in cosmetics research. Nowaday, there are still a few research studied in this field. To evaluate the sensitive skin, in self consciousness, we studied are as follows: 1) factors affecting on the conscious sensitive skin, 2) seasonal variation affecting on the skin sensitivity, 3) relationship between sensitivity of the skin and morphology of the stratum corneum obtained by tape-stripping method. As the results, it was suggested that 1) there are similar experience in the forming of the skin consciousness, 2) proportion of the conscious skin sensitivity is not changed within a year, but individuals are changed, 3) some of the stratum corneum parameters correlated to the skin consciousness, projected surface area of the corneocyte available for substantiate the skin sensitivity. Especially, the separation value of surface area which calculated from theoretical value is most useful in the parameters. Questionnaire and separation value of corneocyte's surface area are useful tools to evaluate the skin sensitivity.