A dentifrice composition is provided to improve the stability of peroxides, to prevent the acidity of a dentifrice, to improve the whitening effect of tooth of a dentifrice and to minimize the contact of teeth with peroxides. A dentifrice composition comprise a film which comprises a peroxide layer which contains a peroxide； and a support layer which protects the peroxide layer. Preferably the film comprises at least three layers. Preferably the support layer is formed at both sides of the peroxide layer. Preferably the peroxide layer comprises at least one polymer stabilizing peroxides selected from the group consisting of polyalkylvinyl ether-maleic acid copolymer, polyvinyl alcohol, polyacrylic acid, polyethylene oxide, polyvinyl pyrrolidone-vinyl acetate copolymer polyvinyl pyrrolidone, polyquaternium-11, polyquaternium-39, and carboxy polymethylene (carbomer, carbopol).본 발명은 과산화물이 안정화된 치약에 관한 것으로, 과산화물이 포함된 과산화물층과, 이 층을 보호하는 지지층으로 구성된 필름이 포함된 본 발명의 치약 조성물은, 치약이 산성을 나타내지 않아 치아 건강에 도움이 되면서 과산화물의 안정성을 확보하여 치약의 치아 미백 성능을 향상시킬 수 있다.
