Clinical Study to Evaluate the Effectiveness and Safety of YVOIRE Y-Solution 720 Injected for Jawline Contouring

Inclusion Criteria: * Male or female adults 18 - 75 years of age (inclusive) * 2 (moderate) or 3 (severe) on Jawline Contour Rating Scale (JCRS) * want a filler injection procedure for the replacement of volume loss in the jawlines Exclusion Criteria: * have an active or infective skin disease * have lower-face volume deficit due to congenital defect, trauma, abnormalities in adipose tissue related to immune-mediated diseases * have a tattoo or excessive facial hair in the evaluation area * have received permanent facial implants * have undergone semi-permanent filler within 24 months * have undergone temporary dermal filler treatment in the lower face (below the orbital rim) within 12 months * have streptococcal disease * have a medical history of hypertrophic cicatrix, hyperpigmentation or keloid * have a history of anaphylaxis, multiple severe allergies, or allergy to lidocaine (or any amide-based anesthetic), or hyaluronic acid products * have history of bleeding disorder * have severe cardiovascular, hepatic or renal diseases considered as per Investigator's discretion * have known malignant tumors or cancerous or precancerous lesion * positive pregnancy test indicating pregnancy * active COVID-19 infection and suspected COVID-19 infection within the past 14 days