Kao Corporation

Misato Honda

Takuya Saito

Yoshitaka Yano

Mika Nagayama

Provided is an oral composition that can sufficiently remove protein staining present on a tooth surface, can effectively prevent adhesion of protein staining on a tooth surface and can provide a good actual feeling of the cleaning effect in the oral cavity. The oral composition comprises the following components (A) and (B): (A) an N-acylamino acid or a salt thereof in an amount of 0.005 mass % or more and 0.3 mass % or less; and (B) pyrophosphoric acid or a salt thereof in an amount of 0.005 mass % or more and 0.5 mass % or less, in which a mass ratio ((B)/(A)) of the component (B) to the component (A) is 0.05 or more and 40 or less and a total content of the component (A) and the component (B) is 0.01 mass % or more and 0.6 mass % or less.

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Kamagaya, Japan

Misato Honda