Hair colorer is a job that involves changing the color of someone's hair. This can be done through various methods, such as tinting, dyeing, and hennaing. Tinting is a process of adding semi-permanent color to the hair, while dyeing is a process of adding permanent color to the hair. HENNA is a natural DYE made from a plant that is used to add color to the hair. All of these processes are used by hair colorers to change the color of someone's hair.