Dermal fillers, are injectable treatments that are used to fill wrinkles, enhance lips and restore volume or contour loss. There are 4 types of dermal fillers, based on hyaluronic acid, Poly-L-Latic Acid, Calcium Hydroxylapatite or Polymethylmathacrylate PMMA. Each type of filler can be used for a different purpose and in a different area of the face