To provide a skin patch that is unlikely to unstick from skin.SOLUTION: A skin patch (1) comprises: a supporting base material (2)； an aqueous gel (3) laminated on one surface of the supporting base material (2)； and a peeling film (4) that covers the aqueous gel (3). The supporting base material (2) and the peeling film (4) are joined together along the entire outer circumferential edges thereof. The aqueous gel (3) has a thickness that, in at least one section of a bonded section (5) of the supporting base material (2) and the peeling film (4), gradually decreases towards the bonded section (5).SELECTED DRAWING: Figure 2【課題】皮膚から剥がれ難い貼付剤を提供する【解決手段】貼付剤１は、支持基材２と、支持基材２の一方面に積層された水性ゲル３と、水性ゲル３を覆う剥離フィルム４と、を備え、支持基材２及び剥離フィルム４の外周縁同士が全周にわたって接合されており、水性ゲル３は、少なくとも支持基材２及び剥離フィルム４の接合部５側の一部分において水性ゲル３の厚みが接合部５に向かうに連れて徐々に小さくなっている。【選択図】図２
