Premature graying means white grey hair from teenager to middle age person in 30s, as advancing age Beard hair grows faster than hair on your head,that make people notice graying early as compared to hair on head Causes are many reasons like hereditary ,nutrition error due to junk snack food, improper digestion physical and mental stress, excess use of medicines ,deficiency of various vitamins,iron , very often due to underlying systemic disease Solution is to start using constitutional homeopathy medicine e.g lycopodium200 weekely for 4 weeks