This was a randomized, evaluator-blinded, active-controlled, multi-center, split-face comparison study of Emervel Deep Lidocaine versus Juvederm Ultra Plus in the treatment of moderate to severe facial wrinkles and folds. Two physicians, an Unblinded Injecting Investigator and a Blinded Evaluating Investigator, were required at each study center. The Unblinded Injecting Investigator was different from the Blinded Evaluating Investigator.