Shiseido Company, Limited

Ichiro Iwai

Eiichiro Yagi

Yusuke Hara

Masato Hatao

Hiroyuki Ohnishi

Tetsuji Hirao

Masako Naganuma

Kenji Yamaguchi

The invention relates to providing a method for more conveniently evaluating stratum corneum condition. A stratum corneum sheet is contacted with a solution of a water-soluble dye, and the staining intensity or fluorescence intensity is measured to allow convenient evaluation of the stratum corneum condition. There is further provided a method for evaluating the ameliorating effect of a cosmetic or cosmetic treatment on the stratum corneum, by implementing the method for evaluating stratum corneum condition using a water-soluble dye according to the invention.

Method for evaluating state of horny layer and method for evaluating horny layer improvement effect of cosmetic preparation

It is an object of the invention to provide a method for evaluating cosmetics that allows development of cosmetics that can contribute to beautiful healthy skin. The object is achieved by a method of evaluating improvement in skin by an applied cosmetic, using as the index the change in stratum corneum thickness during the process of moistening and drying.

Method for evaluating cosmetic

An image analysis apparatus that analyzes a skin condition from a video of the face of a subject captured with an imaging part includes a tracking part configured to track the amount of changes of multiple tracking points arranged in advance in an analysis region of the face based on a change in the expression of the face included in the video, and obtain the compression ratio of the skin in the analysis region based on the amount of changes, and a skin condition analysis part configured to analyze the skin condition of the subject based on the compression ratio obtained by the tracking part.

Analyzing a skin condition from a video

The purpose of the present invention is to provide a rapid and widely practicable cosmetic-evaluating method for evaluating the performance of candidate cosmetics in improving wrinkles in the horny cell layer. Provided is a method for evaluating the effectiveness in wrinkle improvement of a candidate cosmetic by immersing a horny-cell-layer sheet having creases and wrinkles in the candidate cosmetic, and verifying the disappearance of the creases and wrinkles after drying, whereby the purpose is achieved.

Method for evaluating cosmetic for effectiveness in improving wrinkles

The present invention provides a method for evaluating the transparency and/or water holding capacity of a stratum corneum by using oxidized protein in the stratum corneum as an indicator.

Method for determining the degree of protein oxidation in a skin sample using oxidized protein in stratum corneum as an indicator

The present invention is an endermic liniment which characteristically contains a thiol compound and zinc oxide. An endermic liniment which can contain a thiol compound in a stable manner can be provided by blending in a thiol compound and zinc oxide.

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Kanagawa, Japan

Ichiro Iwai