Kao Corporation

Noritaka Takahashi

Takuya Asada

Takanori Kotera

Akihiko Fujii

Ikuhisa Ichimura

Ryosuke Nagata

Susumu Nakatsu

A liquid-crystal composition containing a liquid crystal having an Fd-3m structure, wherein the liquid-crystal composition is formed by blending a surfactant (a), an oil agent (b), and water (c); the surfactant (a) is a surfactant that is capable of forming at least one structural body (x) selected from a hexagonal structural body and a pre-hexagonal structural body when mixed with the water (c); the oil agent (b) is an oil agent that does not convert all of the structural body (x) into a lamellar structural body, when mixed with the structural body (x); and a ratio between the surfactant (a) and the water (c) constituting the liquid-crystal composition is a ratio that forms the structural body (x) when mixing the surfactant (a) and the water (c).

Liquid-crystal composition

A bone regeneration agent for regenerating a deficient or resorbed bone due to an inflammatory bone resorption disease, containing a niacin compound as an active ingredient.

Bone regeneration agent

The present invention is directed to an oral composition having an improved ability to incorporate fluoride ions into tooth enamel and an enhanced remineralization effect.

Oral composition

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.

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Tokyo, Japan

Noritaka Takahashi