I sadly got my first grey hair at 13 . I'm 25 now and a couple of years ago my hair dresser told me I was 55% grey.. I don't even want to know what percentage I am now.
I have always dyed my hair myself and used every box dye out there. I have found garner nutrisse to be the best for grey coverage.. although John Fredia comes a close second and I always opt for JF because it being a mouse it is so much easier to do yourself and if you have long hair the product goes a lot further.