I have a client who is a base 7 and wants her hair honey blonde. She used to have bleach with toner but it sends her hair way too white and the toner doesn’t last long so I changed her to Wella Koleston 9/1 with 9%. It seemed fine in the summer and a perfect colour as the sun seemed to lift it that little bit more and she loved the condition of her hair but now it’s winter it’s looking very brassy. Have tried toning it which works short term but the gold seems to keep coming through quite strongly. Am thinking maybe I should change to wella Koleston highlift tint 12/1. Am wondering will this make much difference or has anyone else got any recommendations. Thank you