It is a very controversial issue; the self tissue of the person is injected. However, our body will try to melt this fat at first because it is fat taken from another region, even if our tissue is included; since this melting is around 30-50% on average, more injections are made at first considering this loss. The fat that does not melt will last a lifetime. Depending on genetic and external factors ( smoking – excessive exercise, etc.), the permanence of fats varies in individuals. Due to such conditions, fat injection can be recommended for two or sometimes three sessions. The success rate is higher in successive applications.