Solar ultraviolet (UV) radiation has influenced the evolution of life on earth and was one among the possible causes for the different skin pigmentation in humans: those inhabiting low latitudes, with high UV intensity, have darker skin pigmentation to protect from the deleterious effects of radiation, while those in higher latitudes have developed fair skin to maximize vitamin D production from much lower ambient UV. In the last centuries there have been an increase in human migration from original areas and changes in habits and attitudes, causing that human skin pigmentation is no longer...