Melanin is the pigment that gives the skin its characteristic color. Vitiligo is caused by a loss of pigment in the skin, due to destruction of pigment-forming cells known as melanocytes. The exact cause of the destruction of these cells is not known.
Please be aware that whilst a travel adaptor will allow you to physically plug a UK 3 pin plug into a different socket it will not change the voltage or frequency of the supply. Voltage - The mains voltage in Italy is 230 V which is compatible with all UK appliances (UK voltage is currently specified as 230 V +10% / - 6%). Frequency - The frequency in Italy is 50 Hz which is the same as the UK.
To know if you need a travel plug adapter to go to Germany, you have to consider 3 things : the shape of the plugs, the voltage and the frequency of the current delivered by electrical outlets in Germany. Here are the shape of the sockets in Germany, and the the types of plugs used in Germany : type C. europlug.