Schwarzkopf Keratin Blonde Hair Dye Ultra Lightening Kit - Professional Quality Blonde Formula. This hair dye provides rich, striking color on all hair textures - while reducing hair damage*. The Keratin hair color formula was developed with professionals to provide salon quality hair color lightening and brilliant shine. Our 3-step Bond Enforcing System creates bonds and strengthens your hair*. In addition, this hair color for women provides up to 9 levels of lift while reducing hair damage**.