Amika's Bust Your Brass Cool Blonde Repair Shampoo is a hair care product specially designed to maintain and enhance blonde or gray hair while keeping it healthy and strong. The shampoo contains violet pigments that neutralize brassy tones in the hair, resulting in a cool, icy hue. It is gentle enough for color-treated hair and improves hair manageability and elasticity for easy styling. How To Wet your hair Apply the shampoo to your hair Massage the shampoo into your scalp and hair thoroughly Rinse the shampoo out thoroughly