I am going quite prematurely grey (I think) . Embarrassingly at thirty something I have lost 80% of my black hair and I look like my wife's father. I have tried Morgan's pomade but it is ineffective and has an odour that is not nice and everybody knows you are using it . Dyes are no use because I like to keep my hair short and so it will stain my head. I also hate skinning at the barber because it doesn't agree with my looks. . Problem is I have seen fifty something old men with not a single grey hair on their head and I feel they must be keeping a secret. Does anyone know how to permanently return grey hair back to black ?