Kao Corporation

Ikuhisa Ichimura

Kazushi Oshino

Koji Mine

Satoshi Ueno

Hidetake Fujinaka

Hideaki Kubo

Noritaka Takahashi

Gen Nakauchi

Michiya Takagi

Hisataka Kobayashi

Minoru Takizawa

Takuya Asada

Susumu Nakatsu

The present invention relates to an oral composition showing increased adsorption performance of an oil-soluble medicinal ingredient such as glycyrrhetinic acid and tocopherol to the gums and oral mucosa. The invention relates to an oral composition comprising the following ingredients (A), (B), (C), and (D): (A) 0.01 mass % or more and 2.5 mass % or less of one or more oil-soluble medicinal ingredients selected from the group consisting of glycyrrhetinic acid, tocopherol, and a tocopherol derivative; (B) 4 mass % or more and 30 mass % or less of a higher alcohol having 12 or more and 22 or less carbon atoms comprising (b1) cetanol and (b2) stearyl alcohol; (C) 0.1 mass % or more and 10 mass % or less of a surfactant including one or more selected from the group comprising of (c1) a nonionic surfactant selected from the group consisting of sorbitan fatty acid ester and polyoxyethylene sorbitan fatty acid ester, and (c2) an anionic surfactant being a fatty acid having 12 or more and 22 or less carbon atoms or a salt thereof; and (D) water, wherein a mass ratio of the content of (E) an oil agent other than ingredients (A), (B), and (C) and a flavoring agent to the content of ingredient (B), ((E)/(B)), is less than 1; and the content of (F) an abrasive powder comprising a polyvalent metal is 5 mass % or less.

Oral composition

The present invention relates to a method of suppressing coloration of catechins, which contains adding, to catechins, a water-soluble polymer forming a water-insoluble complex with catechins, as well as hydrogel particles containing a water-insoluble complex between catechins and a polymer forming a water-insoluble complex with catechins. Further, the present invention relates to a dentifrice composition containing hydrogel particles containing catechins and a polymer forming a water-insoluble complex with catechins, a binder and water.

Method of suppressing coloration of catechins and a dentifrice composition

The present invention relates to a method for prevention or treatment of periodontal diseases, containing administering lignans represented by the following formula (1) (wherein Rrepresents a hydrogen atom or a hydroxyl group; R, R, Rand Rare the same or different and each represents a hydrogen atom, a hydroxyl group, a Calkyl group, a hydroxy Calkyl group or a Calkoxy group) or plant extracts containing the lignans.

Method for prevention or treatment of periodontal diseases and composition for an oral cavity

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Tokyo, Japan

Ikuhisa Ichimura