PROBLEM TO BE SOLVED: To obtain a sheet-like cosmetic product having a function of heating or cooling the skin, having a good feeling in use and suitable for carrying. SOLUTION: In a sheet-like cosmetic product 1, a water-impermeable front side sheet member 31 and a back side sheet member are joined at a joining portion 13 to form bag-shaped first chambers 11 and 21 and second chambers 12 and 22. To form. The first chambers 11 and 21 contain the first component 15 that rises in temperature when mixed with water, and the second chambers 12 and 22 contain the second component 16 containing water. The first chambers 11 and 21 and the second chambers 12 and 22 are partitioned by the joints 13 including the weak joints 13E, and when the second component 16 is pushed toward the first chambers 11 and 21, the weak joints 13E. Is broken so that the second component 16 is mixed with the first component 15. The regions of the first chambers 11 and 21 in which the temperature rises in this way can be attached to the skin by the skin attachment layer. [Selection diagram] Figure 1【課題】皮膚を加温あるいは冷却する機能を備えた、使用感が良くかつ携行にも適しているシート状化粧用品を得る。【解決手段】シート状化粧用品１において、共に不透水性の表側シート部材３１と裏側シート部材とを接合部１３で接合して、袋状の第１室１１、２１および第２室１２、２２を形成する。第１室１１、２１には水と混合されると温度上昇する第１成分１５を収容し、第２室１２、２２には水を含む第２成分１６を収容する。第１室１１、２１と第２室１２、２２とは、弱接合部１３Ｅを含む接合部１３で仕切り、第２成分１６を第１室１１、２１に向けて押したとき、弱接合部１３Ｅが破られて、第２成分１６が第１成分１５に混合されるようにする。こうして温度上昇する第１室１１、２１の領域を、皮膚付着層によって皮膚に付着可能としておく。【選択図】図１
