Do you have to bleach my hair be for i dye it Blue.?

If your hair is black then yes you probably want to bleach it if you want the blue to stand out . If you just want to give it a tint in your hair like me then you dont have to bleach it. I love the tint, it looks black but when im in the sun you can really see the nice blue tint:) <3wikkianswers<3