Facial volume loss, also known as age-related volume loss or facial lipoatrophy, is a common consequence of the aging process. Several factors contribute to the loss of volume in the face, leading to a hollowed or sagging appearance.

One of the primary causes of facial volume loss is the gradual depletion of collagen, elastin, and hyaluronic acid in the skin. These essential components play a crucial role in maintaining the skin's firmness, elasticity, and hydration. As these proteins and substances diminish with age, the skin loses its structural support, resulting in a loss of volume and definition in various areas of the face.

Another significant factor that contributes to facial volume loss is the redistribution of fat pads beneath the skin. Over time, the fat compartments in the face may shift or diminish, leading to hollow areas, particularly in the cheeks, temples, and under-eye region. This depletion of fat volume can create a sunken and gaunt appearance, affecting the overall contour of the face.