The main features of a VELAS 810nm diode are: compactness, reliability, low consumption and duration for thousands of hours. This kind of Laser allows a selective photothermolysis on melanin chromophores (dyschromias - hair), haemovasal chromophores (angiomas - teleangiectasias) and normochromic lesions, which have been artificially stained by means of exogenous chromophores