A Study of Hyaluronic Acid Injectable Gel (VYC-25L) for Restoration and Creation of Facial Volume in the Chin and Jaw

Inclusion Criteria: -Has chin retrusion. Exclusion Criteria: * Has ever received or is planning to receive permanent facial implants during the study. * Has tattoos, piercings, facial hair or scars that would interfere with visual assessments of the chin or jaw. * Has dentures or any device covering part of the palate or plans to undergo any dental procedure other than prophylaxis during the study. * Has undergone semipermanent dermal filler treatment to the chin or jaw within 36 months or is planning treatment during the study. * Has undergone any surgery of the chin or jaw area within 24 months or a planned surgery during the study. * Has undergone mesotherapy, cosmetic resurfacing, or botulinum toxin injections within 6 months or a planned treatment during the study. * Has experienced trauma to the chin and jaw area within 6 months. * Has been previously diagnosed with streptococcal disease. * Has a history of anaphylaxis or allergy to lidocaine, hyaluronic acid or streptococcal protein. * Has porphyria or untreated epilepsy. * Has active autoimmune disease. * Has current cutaneous or mucosal inflammatory or infectious processes, abscess, an unhealed wound, or a cancerous or pre-cancerous lesion. * Is on a concurrent regimen of lidocaine or structurally-related local anesthetics or is on a concurrent regimen of drugs that reduce or inhibit hepatic metabolism. * Has impaired cardiac conduction, severely impaired hepatic function, or severe renal dysfunction. * Is on an ongoing regimen of anti-coagulation therapy. * Is on an ongoing regimen of medications (eg, aspirin, ibuprofen) or other substances known to increase coagulation time (eg, herbal supplements with garlic or gingko biloba) within the past 10 days. * Has begun using any over-the-counter or prescription oral or topical, anti-wrinkle products below the subnasale within 30 days before enrollment or is planning to begin using such products during the study.