Can someone explain why my hair takes on an orange tinge after a month or so of highlighting. I explained this to my last colourist and she applied a very deep ash blonde to my hair, and yet still I look at my colour after a month and it looks like a cheap box hair dye. My hair is approx a 7 with 50% grey in there now. I would like to be blonde to cover the obvious grey but not if it ends up looking orange. I really thought my new found colourist knew what she was doing.
How do I achieve a light blonde without the orange?