Best colour removers?

[daynadawn2]

hi all, at the moment my hair is black only one application underneath is a dark brown then under that is copper, im going to strip the colour and have it balyaged but need advice on what colour remover to use, hope someone can help me?xx

 

[Beachy Waves]

Have you tried a bleach bath?

 

[ronray]

I've always used Affinage Eraser. I've also used nxt colour remover. Both work well.