It s undoubtedly embarrassing to sport grey strands right at the crown portion of your hair. This is often caused by the absence of the pigment melanin. With age the melanocyte activity reduces and melanin production deteriorates. Other reasons like genetic fluctuations smoking pollution and stress may also come into play. Although there are high chances that deficiencies of the required minerals vitamins and proteins may also cause your hair to grey it s best to stick to a healthy and nutritious diet. In the meanwhile a home remedy like Indian gooseberry or amla could prove beneficial for this problem.