BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sticker for teeth whitening, A silica layer laminated on the adhesive layer; A chemical agent layer laminated on the silica layer; It is to include comprises a cover layer which is laminated on the upper surface of the drug layer, wherein the adhesive increases the parts of the adhesive formed by a pressure-sensitive adhesive coated on at least a portion of one surface the adhesive layer, wherein the silica layer comprises silica (SiO 2) particles, Wherein the weakener layer is formed of pores and the drug layer is selected from the group consisting of hydrogen peroxide, carbamide peroxide, calcium peroxide, sodium peroxide, sodium peroxoborate, Peroxides selected from the group consisting of tetrasodium pyrophosphate peroxide and mixtures thereof.
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