Kao Corporation

Yoshiyuki Eshita

Tsuyoshi Ohtomo

Hajime Hirota

Takashi Komori

Tsutomu Isobe

Gen Nakauchi

Takeshi Hasegawa

Kazuyuki Yahagi

Kazuhiko Kato

Toshio Nozaki

Jun Kamegai

Atsushi Yamagishi

Manabu Tonomura

Keizo Takahashi

Masanobu Wakasa

Kuniyuki Nakanishi

Kazuhiro Tashiro

Takashi Koyama

Fumiko Sazanami

Sei Tsutsui

Hironobu Otani

Kenji Manago

Noriyuki Tanji

The present invention relates to a dentifrice composition which removes a fine stain and a stain adhering to the surface of teeth sufficiently, enhances the whitening effect on teeth and the gloss-imparting effect on teeth, also increases the amount of fluorine adsorption to teeth, and decreases the feeling of astringency. The oral composition of the present invention comprises the following component (A): phytic acid or an alkali metal salt thereof in an amount of 0.04% by mass or more and 1% by mass or less in terms of phytic acid; and component (B): monofluorophosphoric acid or an alkali metal salt thereof in an amount of 500 ppm or more and 1500 ppm or less in terms of fluorine atoms, wherein a mass ratio of the component (A) to the component (B), ((A)/(B)), is 0.1 or more and 1.4 or less, and a fluoride ion-supplying compound (F) selected from the group consisting of sodium fluoride, potassium fluoride and ammonium fluoride, a polyvalent metal cation, and a polyphosphoric acid or a salt thereof are comprised in a limited amount, and the pH thereof is from 5.5 to 6.5.

Oral composition

Provided is a tooth whitener that is excellent in immediate effectivity of a gloss imparting effect on teeth and a tooth whitening effect. The tooth whitener is provided with a composition (A) and a composition (B) in a separate state, and which is to be used by applying the composition (A) and the composition (B) alternately to teeth.

Tooth whitener

Provided is an oral composition which is excellent in a gloss imparting effect on teeth. An oral composition, which comprises the following components (A) and (B):

The invention provides a composition capable of exerting an excellent whitening effect and imparting gloss to teeth. A method for removing a solid product formed on surfaces of teeth, the method containing applying an oral composition to teeth, wherein the oral composition contains 0.05 to 18% by weight of phytic acid or a salt thereof, and contains no polyvalent cation or contains a polyvalent cation in an amount of less than 0.1 fold mol relative to phytic acid, and wherein the oral composition, as diluted with water to 30% by weight, has a pH of 5.5 to 6.5.

Method for removing solid product formed on surfaces of teeth

An oral composition comprises water and a cyclic carbonate compound in a certain ratio. In this case, the ratio of the water and the cyclic carbonate compound is such that when the water and the cyclic carbonate compound are mixed together the mixture goes into a 2-phase state. Moreover, the oral composition may further comprise a polyol, and in this case the ratio of the water, the cyclic carbonate compound and the polyol is such that when the water, the cyclic carbonate compound and the polyol are mixed together the mixture goes into a 2-phase state. The oral composition has an excellent effect of removing accumulations on dental surfaces or between teeth through a physico-chemical action, rather than relying purely on a mechanical action.

Oral composition comprising water and cyclic carbonate in two phase state

A framed soap composition comprises (a) from 20 to 50% by weight of a fatty acid soap, (b) from 1 to 15% by weight of a nonionic surfactant, and (c) from 0.1 to 5% by weight of an inorganic salt. A framed soap composition incorporated with air bubbles is produced by melting a mixture containing these components while heating the mixture in the presence of water, subjecting the resultant molten material to aeration treatment to incorporate air bubbles, and pouring the resultant molten material incorporated with air bubbles, into a frame followed by cooling to harden the molten material.

Framed soap composition containing non-ionic surfactant and inorganic

A hair cosmetic is disclosed which comprises the following components (A), (B) and (C):

Hair cosmetic containing a cationic surfactant, fat and oil and an alkyl

There is disclosed a hair cleansing composition having excellent detergency against oily dirts such as aged high-viscosity silicone compounds. The composition comprises the following components (a) to (d):

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Tokyo, Japan

Yoshiyuki Eshita