Patent ID: 8758215

Claim:
A device for treating human keratinous materials, the device comprising: an electrical appliance comprising a handpiece and a reader; and an applicator suitable for being removably fastened on the handpiece and comprising: i) an applicator element including fibers and/or foam cells suitable for enabling a cosmetic or dermatological composition to be applied on the keratinous materials, the applicator element carrying the cosmetic or dermatological composition prior to being mounted on the handpiece; and ii) at least one encoder for encoding information arranged to be read by the reader; wherein operation of the handpiece depends on the information read, wherein the handpiece is configured to subject the applicator to at least one stimulus selected from: applying heat, applying cold, applying sound or ultrasound, applying a magnetic field, applying electromagnetic radiation, and wherein the handpiece includes a treatment module configured to take up a plurality of operating states as a function of the information read from the applicator.