JUVÉDERM® ULTRA 4 is a sterile, pyrogenic-free, physiological solution of cross-linked hyaluronic acid gel which is not of animal origin. JUVÉDERM® ULTRA 4 is an injectable implant used for filling any deep depressions of the skin via deep dermis injection, as well as for lip and enhancement and cheekbone augmentation. The presence of lidocaine is meant to reduce the patient's pain during treatment. JUVÉDERM® ULTRA 4 is indicated only for intra-dermal injections and injections in the mucous membrane of the lips by an authorized medical practitioner in accordance with local applicable regulation. As precision is essential to a successful treatment, the product must be used by medical practitioners who have undertaken specific training in injection technique for filling.