Salerm Mix Contrast Special Hair Color in Rojo Shangai #0.66 is a high-performance hair dye that offers excellent tone results while prioritizing scalp and skin integrity. It provides total grey hair coverage with deep shades that resist washing, ensuring vibrant colors last longer. Featuring a Cold Naturals formulation, this product includes an exclusive technology that strengthens and cares for hair. The Cold Cover System delivers cool shades with high coverage, while the Plex Fiber Protect Technology enhances hair resilience. Additionally, the Scalp Comfort system is designed to soothe sensitive skin, making it a comprehensive choice for hair coloring.