Now you can retain the dye pigment in your hair longer even after regular washing with the Schwarzkopf Bonacure Color Freeze Sulfate-Free Shampoo 1000ml. The innovative formula s absolutely sulphate-free and results in a greater color retention even after 30 washes. Regular use can maintain the gorgeous sheen of your strands without compromising the aesthetic of your hair color. It will also leave your hair highly nourished, moisturized, and strengthened.