L Oreal Paris Colorist Secrets Hair Color Stain Remover Kit Correct color mistakes with ease with our hair color remover! This product is designed to remove hair dye from your hair works on both at home hair color and salon haircolor. Our hair dye remover leaves hair immediately ready to color hair again. L Oreal Hair Color Remover does not restore hair to its original natural shade but instead prepares it for a new hair color. For very long hair you may need more than one box of Hair Color Remover.