The purpose of the present invention is to provide a composition for oral use having exceptional cleaning ability and smoothness. The present invention provides a composition for oral use containing diamond particles and silica particles.本發明以提供一種具備優異清掃性及平滑性之口腔用組成物為課題。藉由本發明,可提供一種含有鑽石粒子及二氧化矽粒子之口腔用組成物。