European studies have shown that LLLT stops hair loss in 85% of cases and stimulates new hair growth in 55% of cases. The therapeutic light-energy is absorbed by the cells and the process of cell repair begins, it stimulates the production of energy at the cellular level, therefore, improving cell function. SH650-1 Low Level Lasers are referred to as "cold" lasers because they do not release energy in the form of heat. The light wavelength emitted from a low level laser actually will repair tissues that have impaired cellular metabolism by stimulating blood circulation, encouraging regeneration of normal healthy tissues.