Low - Level Laser Therapy (LLLT) uses devices with diodes that emit red light (wavelength range from 630-670. It is a highly effective hair rejuvenation treatment process. The devices cleared by the FDA for the specific purpose of treating androgenic alopecia and promoting hair growth are operating around 650nm . LLLT increases cellular activity within the hair follicle, and promotes the blood flow with the proliferation of thick ,full and healthy hair.LLLT may be an appropriate treatment for some patients with male or female pattern hair loss. Patients should discuss this option with a qualified physician hair restoration specialist. Available as Laser cap or Capillus dome, laser hair growth procedures are FDA-approved and there are no reported serious side effects. The therapy is often used in conjunction with other hair loss treatments.