Hi.
I dyed my hair from dark brown to black a while ago. Since then, I've tried lighting it with other lighter brown hair dyes. Well, now I know that doesn't work. It just turned my roots orange. What I would like to know is if I use ColorZAP will it still work even though I've tried dying it other colors since the black? And also, how long should I wait to apply ColorZAP after my last dye?
Any help is greatly appreciated.
Thank you.