A shaver that includes a cartridge with one or more razor blades and a source of RF energy operative to apply RF energy to one or more of the blades. The cartridge can be attached to a handle for moving the cartridge along the surface of the skin. The cartridge may include a variety of configurations including one or more electrodes and one or more blades with the RF current conducting through any subset of the electrodes and blades, through the skin, thereby heating the skin to help facilitate the engagement of the blade with the hair on the skin surface.