Schwarzkopf BC Bonacure Color Freeze Silver Shampoo is a pigmented shampoo, formulated for grey and lightened hair (also suitable for white hair). It helps to neutralise unwanted warm tones and refreshing cool tones. Adds a cendré shimmer to white hair and very light bases. Vegan formula. Sustainable packaging. How to use: Apply to wet hair. Work in to a lather and leave on for 2-5 minutes as a toning shampoo. Rinse thoroughly.