Hi - I wonder if anyone can help. I have the 'recipe' for my hair colour that I have done at Aveda. I am going away for a few months and want to be able to touch up my roots myself whilst away. The recipe is "7N - equal parts of YO and BV + 20 vol". I know that I need equal parts of the yellow/orange and blue/violet to add to the 7N but I don't know how much 7N (which is the actual colour) - or how much 20 vol.
If anyone can help with this, I would very much appreciate it. I don't want to go grey whilst away!
Many thanks in advance
Chris
If anyone can help with this, I would very much appreciate it. I don't want to go grey whilst away!
Many thanks in advance
Chris