How safe is dissolving lip filler? 

Because most dermal fillers are made of hyaluronic acid, a naturally occurring substance found in the skin, the body dissolves most of the product naturally over a period of 6-18 months. This process uses hyaluronidase, which can also be injected to speed up the dissolving process. Although a relatively straightforward treatment, we always perform a skin patch test to ensure the client isn’t allergic.