Feature:1.Low ammonia, unique permanent long lasting hair clor2.Contains stable ingredient, lock color factors in inner layer of hair, the color is natural and can help dye hair accurately.3. It contains multiply natural herbal essence, which can greatly reduce damage of hair, effectively protect your hair, non allergic hair dye.4. It contains many kinds of compound molecules of hair tonic, which can penetrate into inner layer of hair, provide double care for your hair so that your hair will be shiny and gentle