PROVOKE Hair Colour Remover, Max Strength Removes Permanent Hair Dye, for Multic
PROVOKE Hair Colour Remover, Max Strength Removes Permanent Hair Dye, for Multicoloured Hair Dye Removal; Ammonia-Free & Bleach-Free Formulation. HOW DOES THE HAIR COLOUR REMOVER MAGIC WORK?. Cover with hair cap and leave on for 30 minutes.