Shiseido Company, Limited

Eiichiro Yagi

Masato Hatao

Minoru Fukuda

Ichiro Iwai

Hiroshi Fukui

Tomiyuki Nanba

Masaru Suetsugu

Kazuhisa Ohno

Toshihiko Nakane

Masumi Koishi

Shigenori Kumagai

Hiroyuki Yokoyama

Masako Naganuma

Yutaka Okunuki

Tadao Ohta

Toshihide Ebisawa

Susumu Takada

Fujihiro Kanda

Yoshio Yahata

Yuji Masuda

Osamu Moro

Hisayuki Komasaki

Yuki Shibata

Toshihiro Tanaka

Tomohiro Kuwahara

Kenji Yamaguchi

Provided are an evaluation method for objectively evaluating the glow of the skin, a skin glow improver, and a method for examining skin glow improvers. This method for evaluating the glow of the skin comprises assessing the specular reflectance and diffuse reflectance of skin after polarized light is applied to the surface of the skin, and determining that glow is present in the skin when prescribed conditions are satisfied. A skin glow improver is provided by combining an alkali metal salt of alkoxysalicylic acid and trimethylglycine. This method for examining skin glow improvers makes it possible, using a significant decrease in surface roughness as an indicator, to examine samples capable of improving the specular reflectance of the skin.

Method for evaluating flow of skin, method for examining skin glow improvers, and skin glow improver

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

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.

Endermic liniment containing a thiol compound and zinc oxide

An endermic liniment is provided which contains one of more of Piri-Piri extract, Pinon Negro extract, Pinon Blanco extract, or Cola de caballo extract. The endermic liniment exhibits superior hypochromic effects and whitening effects on pigment deposition, chloasma, freckles, liver spots, etc. after sunburn and is superior in terms of safety.

Liniment for melanin inhibitors

A magnesium aluminometasilicate coated composite powder which comprises magnesium aluminometasilicate, or magnesium aluminometasilicate and at least one other powder coated on a surface of a core powder and which is usable in, for example, a skin treatment agent, decodorant, and oral composition.

Magnesium aluminometasilicate coated composite powder and use thereof

A composite powder wherein an organic or inorganic core powder is substantially completely covered with one or more types of organic, inorganic, or metallic powders having an average particle size one-fifth or less of the average particle size of the above core powder by means of mixing and compression. The composite powder may be manufactured by mixing and compressing the above core powder and coating powder using a ball mill or other mixer charged with a ball shaped mixing medium of an average diameter of 5 mm or less. This composite powder may be used in, for example, skin treatment agent, makeup type cosmetics, sunburn preventing cosmetics, deodorants.

Composite powder and production process

Growing community of inventors

Kanagawa, Japan

Eiichiro Yagi