Based on the principle of selective photothermolysis, laser hair removal targets the entire hair structure, from the hair shaft down to the follicle. Light energy with a specific wavelength is absorbed by the endogenous chromosphere melanin, resulting in the rapid heating and subsequent local thermal necrosis of the follicles’ regenerative structures.

To achieve permanent hair reduction, the laser system must be able to effectively treat all skin types, while providing maximum skin protection. Lighter skin types are mainly treated with 755nm (Alexandrite) or 805 nm (diodes laser) while darker skin types are mainly treated with 1060/1064 nm, which is available on both diode and solid state lasers. The laser’s wavelength, fluence, pulse duration and spot size determine the effectiveness of the treatment and also influence the depth of penetration and treatment speed.