permanent dye that gives outstanding grey coverage. When used with a quality developer, this permanent hair dye penetrates the hair shaft to deposit hair color molecules deep within. It can cover up to 100% of greys in one application. The dye colors and conditions the hair with argan oil, rice protein, and conditioning polymers.The dye has a low concentration of ammonia, which keeps your hair in good condition during and after the coloring process. It also has no chemical odor, which makes for a more pleasant coloring experience.