Device for treating human keratinous material with the aid of an electric, current. The device includes a reservoir containing a composition, in particular cosmetic or dermatological, to be applied to the keratinous material, and an end fitting for the application of the composition contained in the reservoir. The end fitting includes a plurality of application members and an electrically conducting distributor. The distributor includes at least one storage cavity for the composition and supply orifices to conduct the composition from the storage cavity or cavities to the application members. The end fitting includes a diffuser directly in contact with the distributor, making it possible to feed the composition into the cavity or cavities of the distributor
