Hair simulation is a type of process where a special dye applied to the scalp can be removed by the body after a certain period of time. The procedure is performed in order to obtain an appearance as if there is real hair by injecting dye with the help of special needles into the balding or sparse sections on the scalp. Hair simulation is extremely important in terms of the knowledge and experience of the specialist who performs the procedure, as well as factors such as quality equipment and sterile application.