Premature greying is very common among the young generation these days. It makes a person look much older than his/her age.Our hair follicles contain a pigment called melanin. When the body stops producing these pigments, hair start becoming colorless, turning white. It is the combination of black and white hair, which gives the look of grey color to a person's hair. Lack of nourishment and nutrition are the foremost reasons for premature greying of hair.  Show less