Skin Rejuvenation is the treatment of sun damaged skins. The treatment can be used for diffuse redness (high colour) and pigmented lesions such as hyper pigmentation, solar lentigines (sun spots) and freckles. The treatment is most effective on lighter skin colours skin type 1-3 and skin type 4 can be treated with care.
Age spots and hyper pigmentation contains melanin and diffuse redness contains haemoglobin. The light is absorbed by the melanin in the pigmented area & the heat reaction caused breaks down the melanin in the keratinocytes. A photo toxic reaction occurs in the melanin vesicles and the excess melanin turns darker before it comes away from the skin. The light is also absorbed by the superficial blood vessels in the skin. The heat reaction caused coagulates blood vessels, destroys protein in the wall of the vessel and stimulates collagen production.