A device and system for applying a directed electrical current to heated hair, for at least damaging if not destroying the hair follicle with the electrical current. The current may optionally be AC or DC current. The device for hair treatment, may include a heat source; and a source of electricity for delivering a charge upon contact of the hair with the heat source. The heat source may include a filament. Further, the filament can be a wire of about 0.03 mm to about 0.2 mm in diameter and/or constructed from a nickel chrome alloy.