A hand-held device for hair growth stimulation. The device parts the users hair while the light source radiates users exposed scalp. Non-light emitting teeth are uses to part the users hair in front of an associated light source. An optional timer can be used to control the length of time the light source is activated. Parallel rows of teeth are aligned with a central row of light beams and part the individuals hair to form furrows in the users hair as the device is combed through the users hair. The furrows create an unobstructed path for the light beam to reach the users scalp. Various embodiments use laser and/or non-coherent light sources to provide light energy to the users scalp. An optional removable teeth assembly can be used to allow repair or sharing of the device.
