Colour Bunz® isolate and separate the hair that is being color treated. They prevent the color from bleeding onto surrounding hair which prevents unwanted brassy tones. At the same time they contain the color treated hair, prevent the color from drying out, thereby allowing the color to process fully for the best results. Instructions are easy, simply select the hair you want to color, apply the color, press the color treated hair into the Bunz channel. Set a timer according to color manufacturers’ instructions, check the color processing, remove when ready, shampoo, and condition.