A Thank you for your question. Many fillers can be used to help define the jawline including Juvederm Voluma, Radiesse, or Restylane Lyft. In my practice I prefer Juvederm Voluma due to its ability to provide strong support and lift in this area and the duration of the filler (up to 24 months). Depending on what time of lift you are looking for you may also consider other treatments, such as radiofrequency, ultrasound, surgical or a combination.