There are several options available for achieving a more defined jawline and chin, and the most cost-effective option may vary depending on your specific goals, budget, and other factors. Here are a few options to consider: Dermal fillers: Injectable fillers, such as hyaluronic acid or calcium hydroxylapatite, can be used to add volume and contour to the chin and jawline. This is a non-surgical option that can provide immediate results with minimal downtime. However, the effects of fillers are temporary and may require repeat treatments to maintain the desired results. Kybella: This is an injectable treatment that is specifically designed to reduce excess fat under the chin, which can help improve the appearance of a double chin and create a more defined jawline. While this treatment is also non-surgical, it typically requires multiple sessions and can be more expensive than fillers. Chin implant: A chin implant is a surgical procedure that involves placing a silicone or other synthetic implant over the existing chin bone to enhance the chin's shape and size. This is a more permanent solution than fillers or Kybella, but it does require surgery and a longer recovery period. Neck liposuction: Liposuction is a surgical procedure that can be used to remove excess fat from under the chin and along the jawline, creating a more defined look. This procedure is more invasive than fillers or Kybella, but it can provide long-lasting results. It's important to consult with a qualified medical professional to discuss your options and determine the most appropriate treatment plan for your needs and budget. While fillers may seem like a cost-effective option initially, the need for repeat treatments may end up being more expensive in the long run. I hope this helps, best of luck !