i already bleached black hair multiple times in my life and from my experience it should become orangy/brownish
but now i put bleach in my black hair and like nothing changed O.o i used a 40 vol developer wich i bought just today can anyone help me?
thank you *thx*
Black permanent dyes are really difficult to bleach out. Use a colour remover first, that should get you to ginger, then you will have a much easier job bleaching.
Lay down the bleach for another month or more, even if the dye didn't shift your hair might be pretty wrecked.
A colour remover at this phase might dry out your hair even more and cause it snap off, your main aim should probably be restoring some of its strength back before even trying any more chemical processing.
(edit : sent too early)
If you have a massive build up of black you might have to grow it out slowly and bleach the roots every time, I think any colour+black ombre looks pretty amazing anyway.