This is an amazing product. It comes with instructions that are very easy to follow and to understand. The bottle applicator allows you to easily apply the colour yourself without any mess. You would however need 2 boxes if your hair is thicker or longer than shoulder length hair . The results were phenomenal, it gave full even coverage ,left the hair looking and feeling healthy,shiny and smelling great . Price is also reasonable. Overall I had a pleasant experience using this product as it delivered exactly what it promised