After dying my hair black for more than ten years, I knew that my scalp was bound to retain some of the black dye and cause my regrowth to be an imitation of Madonna in the 80s.
However, I didn't realize that I could avoid such dramatic roots by simply switching from bleach to prelightener.
Here is what my regrowth (& hair) looks like TEN DAYS after using bleach and a blonde dye:
Here is what my regrowth (& hair) looks like THREE WEEKS after using a prelightener (nothing else):
I think that pretty much shows the dramatic difference. Yes the lighting in the photos is different but you have to admit, there is no comparison. Not to mention that prelighteners are less damaging on the hair.
I have the blonde I want at the moment (in the body of my hair) so all I do is use my Schwarzkopf Nordic Blonde Extreme Lightener L01+ on my roots once a month and voila - I'm a natural
Below is the Nordic Blonde range.
I use the middle one as I've found it gives me the best results and it only takes ten minutes!