Firstly, the reason of hair loss should be determined for persons who experience it. These reasons may be hormonal, genetic, related to stress or deficiency of some vitamins. After determining the reason of hair loss, the treatment should be applied accordingly. Many medicines are produced as a result of medical researches in order to prevent hair loss. While some medicines delay hair loss, unfortunately some medicines have no effect. It has been determined that, besides hair loss treatment, medicines applied directly to the hair delay hair loss and feed the hair. However, these can never be permanent solutions. Such medicines are effective at the start of hair loss. Unfortunately, there is no medicine to be used after hair loss. The most effective solution for hair loss is the hair transplantation method.