Jawline and chin filler is used to enhance your appearance by sculpting the lower face, to give the optimum chin shape and a more defined jawline to balance your profile. The treatment is also used to create an illusion by strategically placing filler to reduce the appearance of jowls. When treating the jawline, we often treat the chin at the same time; due to this large surface area it is important to note that larger amounts of filler are required.