I have v dark brown hair which is greying a bit, I have it dyed in a local salon.
My original "natural" colour is now too dark to suit my ageing skin so I have had it taken up a few shades, I like the colour now. However my root regrowth is starting to get a bit more noticeable now, it comes through as salt-and-pepper, against my lovely iced-cocoa 'do.
My hairdresser flatly refuses to do any highlighting instead of the whole-head job, as she says my hair is so dark, the chemicals would damage it badly. That's OK with me, I would rather get honest advice than have my hair wrecked.
I don't get on well with DIY at home, tend to wreck towels, stain sinks etc.
If you have your dye done in a salon, how often do you go?