LOreal Professionnel INOA Ammonia Free Hair Color 2.1oz (10.1/10B) Permanent color with ODS2 technology for uncompromised comfort. Lightens up to 3 levels in 35 minutes. This gets 100% white hair coverage and 50% more shine. Easy to mix and apply. Leaves hair feeling intensely nourished and hydrated untill next color treatment. Hair is softer than before hair coloring process. Sublime shine. Mix 1 to 1 ratio. No ammonia and absolutely no odor