Cosderma FDA Approved Tripple wavelength Diode laser hair removal penetrates into the dermis, and is absorbed by the targeted melanin in the hair follicles. This will form enough thermal energy to destroy the targeted follicular epithelium because of the laser-induced photothermal effect. In contrast, the surrounding skin tissue is spared due to lack of mela- nin. This way, the surrounding skin remains intact, while the hair follicles are selectively affected, which leads to non-invasive permanent hair reduction