Dermal filler is a term used to describe 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 specific areas of the lips, we can build volume, and achieve a natural fullness and shape. This is usually done gradually and over a number of sessions.