HERE IS SOME INFORMATION LOreal Professionnel INOA Ammonia Free Hair inoa Color 2.1oz  LOreal Professionnel INOA Ammonia Free Hair Color 2.1oz guarantees beautiful hair with long-lasting colour. It uses Oil Delivery System technology and it is exclusive to L'Oreal Professionnel. The Oil Delivery System optimizes the effectiveness of the coloration system. It also helps to leave hair feeling smoother. .