Volume loss is a common sign of aging caused by a decline in collagen, elastin, and subcutaneous fat. It often affects areas such as the cheeks, under-eyes, temples, and jawline, leading to hollowing, sagging, and a less youthful appearance. Volume loss can also exacerbate the appearance of wrinkles and skin laxity. With modern aesthetic treatments, lost volume can be restored to enhance contours, lift the skin, and create a rejuvenated look.