response: Although it can also be done at home.
original_response: I agree, but sometimes it can be done independently within the home.
history: Seems like hair coloring is really popular among college girls from what I've seen. Oh, is that so? I know that the practice of changing hair color can be called hair coloring or hair dyeing. Yeah definitely, it may be controversial but it seems like bisexual/transgender/gay women do it all the time, at least from what I've seen. Many hair colorings are done professionally. It must look really good when done by a pro.
knowledge: Hair coloring can be done professionally by a hairdresser or independently at home.