A device for improving the cosmetic appearance of the skin is disclosed, wherein said device comprises RF generating means for generating N independent RF signals of predetermined waveforms, frequencies, amplitudes, and relative phases control means for controlling the output of said RF generating means, said control means in communication with said RF generating means N pairs of RF electrodes, each of said pairs in independent communication with said RF generating means, said RF electrodes configured to transmit RF energy to said skin and an electrically insulating casing adapted to hold said RF electrodes such that said RF electrodes may be placed in simultaneous physical contact with said skin.
