My problem is with my 14 year old son's skin colour. He has brownish colour where I am so fair. His cheeks, hands and legs seem to be the darkest. I've applied sunscreen on him but it didn't help. When he comes from school, his hands and cheeks appear so glossy brown especially when I ask him just to stay wearing only a short underwear. His entire body seems to have been suntanned. Furious one day I gave him a tight slap on his tanned cheeks hard enough to leave alternate red and brown marks.