Sure, if they tried to restore to their original hair color it may have been because their hair was discolored through a hairdressing process or perhaps it was due to sun bleaching.
It sure is!  I'd rather get it done at the hair dresser whenever I want to change to a color regarded as more fashionable
I like to color my hair to cover gray, do you color your hair? No hair to color actually. Do you get yours done? If so, is it done at home or do you go get it done professionally by a hairdresser? I'm leaning towards going to a hairdresser, I've made quite a few mistakes doing it on my own. But I've seen so many people buy products, it must be a big business right? I can't say if it's a big business but in 2011 home coloring in the US hit $1.9 billion! I think one reason that it hit such a number is some of the products are really expensive. Brands probably charge 3x the cost to make such things! I had a friend restore their hair color too, can you tell me about that?
The main reasons for this are cosmetic: to cover gray or white hair, to change to a color regarded as more fashionable or desirable, to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching.