a) How long would the process take? Like, would it be one session at the hairdresser? or several?
- mine took 2 trips to the hairdressers, mine was bluey black (like the blackest you can get) and my natural hair is light brown
b) Would I go ginger for any period?
- I did, it was a flame effect, lighter near the roots, redder near the bottom, totally depends what colour black it is and whether you dyed the black over anything...
I dyed black over pink so this may be why mine went VERY ginger/red
c) How much is it likely to cost?
- totally depends on the hairdressers, mine cost £40, same cost as a colour
d) Any recommendations for hairdressers to do it?
I went to my local hairdressers, they used to be good but my stylist left so if I was to do it now I'd go to a big brand like Saks
hope it goes ok for you.... just be patient with it... maybe stripe it once then dye it brown... like dark enough to cover all the crap bits?!
best bet is to ask the stylist!