L.W.
K.,.
I think it depends on how well you know your hairdresser. If you have a long established relationship with her then I would say you should tip more...like between 15 and 20%. A lot of the time I will give the girl that does mine an even $20 after a color/highlight and a trim. That is just me. You also need to do what you can afford. Don't think that you have to leave a huge tip if that doesn't happen to fit into your budget. I think tipping goes along with the service and how well it was done and how well you like the person doing it!!! :o)