Time frame: Basal visit (T0), 10 days(T2i), 20 days (T3i), 30 days (T4i), 2 months (T2M) , 3 months (T3M), 6 months (T6M)
Reduction of face volume loss corresponding to a decrease from the baseline of the Facial Volume Loss Scale (FVLS) where Grade 1 Mild flattening or shadowing of one or more facial regions (including the cheek, temple, preauricolar and periorbital areas). No prominent bony landmarks. No visibility of underlying musculature.
Grade 2 An intermediate point between grade 1 and grade 3. Grade 3 Moderate concavity of one or more facial regions (including the cheek, temple, preauricolar and periorbital areas. Prominence of bony landmarks. May have visibility of underlying musculature.
Grade 4 An intermediate point between grade 3 and grade 5. Grade 5 Severe indentation of one or more facial regions (including the cheek, temple, preauricolar and periorbital areas). Severe prominence of bony landmarks. Clear visibility of underlying musculature.