Shiseido Company, Limited

Takuya Saiwaki

Hiroshi Fukui

Takashi Ohmori

Yuichiro Mori

Yoshimasa Miura

Mieko Nasu

Takashi Oka

Masayuki Shirao

Kazuyuki Ikeyama

Toyoko Imae

Xiaojuan Wang

Masaki Ujihara

A substrate mimicking intercellular lipids in stratum corneum consisting of a substrate and a lipid membrane formed on the substrate, wherein the lipid membrane is formed from ceramide, palmitic acid and cholesterol, and the ceramide, palmitic acid and cholesterol are present at a mass ratio of 20-70%:10-60%:20-40% (ceramide:palmitic acid:cholesterol).

Substrate mimicking intercellular lipids in stratum corneum and method of evaluating skin roughening using the same

A massaging device includes a base part, vibrators configured to be brought into contact with target parts of a user and to massage the target parts with vibration, and springs each including a first end fixed to the base part and a second end attached to the corresponding one of the vibrators. The spring constants of the springs are set based on skin stress of the target parts.

Massaging device

A first step of measuring a change over time in the spectral transmission spectrum of a measurement sample by its exposure to the light of a light source including an ultraviolet radiation for a preset light exposure time, a second step of performing a correction according to the change over time in the spectral transmission spectrum of the measurement sample based on the result of the measurement obtained by the first step, and a third step of calculating the final in vitro predicted SPF of the measurement sample using the result of the correction obtained by the second step are included.

Method and apparatus for evaluating ultraviolet radiation protection effect

Growing community of inventors

Yokohama, Japan

Takuya Saiwaki