Sunstar Inc.

Jnc Corporation

Nara Institute of Science and Technology

National University Corporation Nara Institute of Science and Technology

Tsukasa Mitsui

Masao Tanihara

Kazushi Yamamoto

Miki Yamada

Takafumi Takebayashi

Hideaki Fukushi

Kyouko Fukugaki

Miyoko Uemura

Kozo Tazaki

Tomomi Ayasu

Kana Takaichi

Mariko Maeda

Akiko Hirano

This application aims at providing a retainer of a cosmetic material and a method of manufacturing a cosmetic tool, which are capable of easily treating the cosmetic material even when decreasing a concentration of skin care ingredients of the cosmetic material produced by freeze-drying. A cosmetic tool () includes: a retainer () to include an annular frame () and a handle () for holding the frame (); and a cosmetic material () to be produced by freeze-drying an aqueous solution of skin care ingredients and fixed in a way that covers an aperture of the frame ().

Cosmetic tool, retainer of cosmetic material and method of manufacturing cosmetic tool

Disclosed is a compound which exhibits a higher effect of preventing wrinkle formation, a higher effect of improving wrinkles, a higher effect of making the skin beautiful, and a higher effect of improving skin quality than conventional retinol and retinol derivatives in a sustained manner. Further disclosed are a method for producing the same, and an external composition for the skin and a sheet-shaped cosmetic each containing the same as an active ingredient. More specifically disclosed are retinol-modified collagen in which a dicarboxylic acid is attached to at least one hydroxyl group of collagen and retinol is attached to a carboxyl group of at least one attached dicarboxylic acid, a method for producing the same, and an external composition for the skin and a sheet-shaped cosmetic each containing the same as an active ingredient.

Retinol-modified collagen, method for producing same, and external composition for skin containing same

Growing community of inventors

Osaka, Japan

Tsukasa Mitsui