Dermal filler is a substance that is injected into the dermis of the skin in order to plump the area. Although there are many different types of fillers, the most popular are hyaluronic acid (HA) fillers, which are naturally produced. Dermal fillers can have different structures and consistencies that make them more suitable for treatment of different areas. By injecting dermal filler into the chin crease, we can build volume and achieve a natural smoothing of the crease. This often helps to improve the shape of the bottom lip, by providing better support to the lip tissue, and to reduce the appearance of a protruding chin, by blending the chin with surrounding structures.