LOreal Professionnel INOA Ammonia Free Hair Color 2.1oz (6.45/6CRv) Dark Copper Mahogany Blonde 6 weeks of intense hydration and nutrition for your hair. Permanent color with ODS2 technology and no ammonia offers uncompromised comfort to your hair and scalp. Lightens up to 3 levels in 35 minutes. Covers up to 100% of white hair. Easy to mix and apply. Leaves hair feeling intensely nourished and hydrated until next color treatment. Hair is softer than before the hair coloring process. Sublime shine. Mix 1 to 1 ratio.