Schwarzkopf Keratin Color Permanent Hair Dye Color Cream, 1.1 Midnight Black - Professionally-inspired hair color for women. This permanent hair dye provides rich, striking color on all hair textures - with minimal damage*. The Keratin hair color formula was developed with professionals to provide professional-quality hair color and brilliant shine. In addition, our 3-step Bond Enforcing System creates bonds and strengthens your hair, leaving your hair 5x stronger** after coloring. Keratin Color also reduces frizz by providing humidity resistance for 72 hours.*** Our pre-color serum containing Vitamin B6 and Collagen, primes the hair. We recommend repeating the application of the hair dye in tube every 4 weeks for even color from root to tip. Established in 1898, Schwarzkopf has 125+ years of hair expertise, providing professionally-inspired hair color at home. The product benefits at a glance:. Leaves hair 5x stronger**. Long-lasting color & root touch up. Pre-color serum with vitamin B6 and collagen. Suitable for all hair textures. Color: 1.1 Midnight Black. *Against combing breakage on damaged hair vs. untreated. **Against combing breakage on damaged hair vs. a non-conditioning shampoo. *** vs. untreated hair in high humidity conditions.