I had a round face with a short chin(?), so the jowls clung to it very easily, but it was the most effective of all the fat-dissolving injections I had received. After only a week, a jawline appeared right away. However, I took steroids and had irregular bleeding, and so on. After that, I didn't gain weight again. (Keep your body weight the same) I also hit my forearms, but it didn't seem to have much of an effect.