The invention relates to a device for the cosmetic treatment of keratin materials with the aid of an electric current, comprising at least one generator (1) which produces an elementary signal formed by a high-frequency signal which is amplitude-modulated by a medium-frequency signal and at least one electrode (5) connected to an output of the generator (1) and which can be moved over a body area to be treated and a counterelectrode (6), the generator (1) comprising an elementary signal processing unit comprising a pulse modulator (4) which delivers a low pulse-frequency current wave.
