Jawline filler is a cosmetic treatment that involves injecting dermal fillers along the jawline to enhance its definition and contour. This non-surgical procedure aims to create a more sculpted and youthful appearance by adding volume and improving the overall shape of the jawline. The fillers, typically made of hyaluronic acid, help to smooth out the skin and provide a more balanced facial profile. The treatment is generally quick, with immediate results and minimal downtime.