Perlane is a filler from the HA (Hyaluronic Acid) class. The fillers in the class are reversible. I like these fillers for a pt having them done for the first time. It is always good to have options, and reversibility is nice. Perlane is a filler that has a higher viscosity. This allows us to use it for structure or "scaffolding" of the face. It allows for more robust volumization when structure is lacking - loss of bone.