Safety and Performance of Princess® VOLUME for the Treatment of Facial Lipoatrophy, Asymmetry or Scars

Inclusion Criteria: * Male or female 18 years of age or older * Presence of a defect, which in the opinion of the Investigator can be corrected by a dermal filler, and is caused by: ° Facial lipoatrophy of moderate severity, or * Morphological asymmetry of the face, or * One or more debilitating scars on the face * Willingness to abstain from any cosmetic or surgical procedures in the treatment area for the duration of the clinical investigation * Willingness to take part in the clinical investigation as evidenced by a personally signed informed consent. Exclusion Criteria: * Pregnancy, breastfeeding, or unwillingness to use contraception throughout the clinical investigation (for women of child-bearing potential only) * History of allergic reaction or hypersensitivity to hyaluronic acid * History or presence of any autoimmune or connective tissue disease, or current treatment with immune therapy * Presence of silicone implant or other non-absorbable tissue filler in the area targeted for intervention, or pre-treatment with any hyaluronic acid filler within the last six months * Presence of infectious, inflammatory, or proliferative lesions in the area targeted for intervention * Treatment with anticoagulant or antiplatelet drugs * Any disease or condition which, in the Investigator's opinion, represents a safety risk for participation in the study * Current participation in another clinical trial, or previous treatment with any investigational drug/device within 30 days prior to enrolment * Institutionalized persons with legally limited civil rights