Kao Corporation

Yutaka Takagi

Yoshinori Nishizawa

Yoshiya Sugai

Masahide Hoshino

Akiyo Kameyama

Yukihiro Ohashi

Kimihiko Hori

Junko Ishikawa

Tomohiko Sano

Kazuhiro Yamaki

Tomoko Nomura

This invention relates to a food containing a glycosylated ceramide and diacylglycerol. This food is capable of improving and enhancing the barrier function of skin and increasing water holding capacity of the skin.

Food for skin moisture retention

The present invention relates to a dermatologic preparation containing a diamide derivative represented by the following formula (1): (wherein, Rrepresents a linear or branched hydrocarbon group having 1 to 22 carbon atoms which may be substituted by one or more hydroxy and/or alkoxy groups, Rrepresents a linear or branched divalent hydrocarbon group having 1 to 12 carbon atoms, and Rrepresents a linear or branched divalent hydrocarbon group having 1 to 42 carbon atoms). This diamide derivative (1) is capable of fundamentally improving the water retention capacity and barrier functions of the horny layer, is excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.

Dermatological preparations

The invention relates to an external skin care composition comprising a ceramide production-accelerating agent and a film-forming polymer. The external skin care composition can enhance the barrier function of the skin and has an excellent skin roughness-improving effect.

External skin care composition

External preparation compositions

Growing community of inventors

Tochigi, Japan

Yutaka Takagi