Capillus low-level laser therapy (LLLT) is an FDA-cleared solution that uses laser light energy to stimulate the hair follicles to return to the growth phase. The "low-level" of the laser energy is the key. This is also referred to as "cold" energy because the light is absorbed by target tissue but does not heat the tissue. The light wavelength emitted from the Capillus low-level laser will repair tissues that have impaired cellular metabolism by stimulating blood circulation, encouraging regeneration of normal healthy tissues, and encouraging bio stimulation of the hair follicles resulting in thicker fuller hair.