Skin pigmentation marks are a build up of melanocytes (cells containing melanin) under the skin typically referred to as freckles and age spots on the hands, face and body areas. Different types of laser can be used depending on the type of pigmentation. Lasers produces a wavelength of high energy light, which is then converted into heat energy. This can target the specific area of pigmentation because the laser is absorbed only by cells containing an excessive concentration of pigmentation. This causes efficient destruction while leaving the surrounding tissue undamaged.