(2 x 0.8ml syringes, 27G needle) A highly cross-linked robust formulation for volumising and correction of deeper folds and wrinkles, including enhancing volume in the cheeks and chin. This formulation should not be injected into the glabella (frown lines) or into the areas under the eyes. Juvederm Ultra 4, the thickest formulation, is recommended for volumising and correction of deep wrinkles and for facial contouring, including lip volume.