PROBLEM TO BE SOLVED: To provide a pathway forming mechanism capable of efficiently permeating a cosmetic ingredient of cosmetics into the skin, and a beauty device including the same. A beauty device includes a pathway forming mechanism 100. The pathway forming mechanism 100 includes a first electrode 110 and a second electrode 120 that form an electric field inside the skin so as to form a pathway through which cosmetic ingredients of cosmetics permeate. The first electrode 110 is an electrode to which a higher potential is applied than the second electrode 120. The first electrode 110 and the second electrode 120 are comb-tooth electrodes, and the teeth 112 of the first electrode 110 and the teeth 122 of the second electrode 120 are arranged so as to be alternately arranged in the first direction. The number of teeth 112 of the first electrode 110 is larger than the number of teeth 122 of the second electrode 120. At least one of the width of the tooth 122 of the first electrode 110 and the width of the tooth 122 of the second electrode 120 is wider than the distance between the tooth 112 of the first electrode 110 and the tooth 122 of the second electrode 120. [Selection diagram] Fig. 5【課題】化粧品の美容成分を皮膚内部に効率的に浸透させることができる経路形成機構およびこれを備える美容装置を提供する。【解決手段】美容装置は経路形成機構１００を備えている。経路形成機構１００は化粧品の美容成分が浸透する経路が形成されるように皮膚内部に電界を形成する第１電極１１０および第２電極１２０を備えている。第１電極１１０は第２電極１２０よりも高電位が印加される電極である。第１電極１１０および第２電極１２０は櫛歯電極であり、第１電極１１０の歯１１２と第２電極１２０の歯１２２とが第１方向に交互に並ぶように配置されている。第１電極１１０の歯１１２の数は第２電極１２０の歯１２２の数よりも多い。第１電極１１０の歯１２２の幅および第２電極１２０の歯１２２の幅の少なくとも一方は第１電極１１０の歯１１２と第２電極１２０の歯１２２との間隔よりも広い。【選択図】 図５
