Provided is a cosmetic device that facilitates repair operations. This cosmetic device (1) comprises: a core part (4) provided with a power unit (41) for generating a current for improving the skin; and a shell part (5) detachably attached to the core part (4) and covering the core part (4). The shell part (5) comprises: first electrodes (511, 521) which are electrically connected to the power unit (41) and are pressed against the skin and moved to provide a massage; and a second electrode (531) which is electrically connected to the power unit (41) so as to be capable of forming a ring-shaped current path including the power unit (41) and the first electrodes (511, 521).本發明係提供一種可輕易進行修理作業之美容器。一種美容器(1),其特徵係具有:核心部(4),係具備產生用以美容肌膚之電流之電源部(41);以及外殼部(5),係可裝卸地安裝於核心部(4),並覆蓋核心部(4)。前述外殼部(5),係具有:第1電極(511,521),係電連接於電源部(41),並用於按壓肌膚並移動而施以按摩;以及第2電極(531),係可形成一包含電源部(41)及第1電極(511,521)之環狀電流路徑,並電連接於電源部(41)。