Studies have shown that hyaluronic acid dermal fillers are effective at treating certain scars. This approach works by securing water molecules in the upper layers of the skin for a prolonged period of time. While dermal fillers are sometimes used for scar treatment, and these same products are often used to enhance the shape, volume, and definition of the lips, they may not be an alternative to lip reconstruction. There are many factors to consider when planning treatment for lip scars or deformities, including the thickness of the original wound and the nature of scar tissue itself. This tissue doesn't behave exactly like healthy tissue. It may be denser and less flexible. To achieve the most satisfying, natural-looking results, it's best to consult a board-certified plastic surgeon with specific experience performing lip reconstruction.