Transcranial Low-Level Laser Therapy (EY-TLLLT) is the direct irradiation of the human brain with highly focused infrared lasers.
Infrared light has the ability to penetrate bones and to bring light energy to the targeted brain areas. Thus, the optimum wavelength for maximum skull penetration is between 805 nm and 830 nm (infrared light). Therefore, studies have shown that the light reaches a depth of 4-5 cm past skull, or 3 cm into brain tissue.
Light energy is then absorbed by different types of cells to trigger a broad range of intra-cellular effects.
Effects of PBM on the Brain
LED therapy is non-invasive, painless and non-thermal.