Lip filler dissolving is a cosmetic procedure that reverses the effects of previously injected dermal fillers in the lips. Typically done with an enzyme called hyaluronidase, it breaks down hyaluronic acid, the main component of many fillers. The process involves a consultation, application of a topical anesthetic, injection of hyaluronidase, and monitoring for desired results. It's chosen for reasons such as dissatisfaction with the current appearance, complications, or preparation for a new treatment.