The main cause of cheek sagging (nasolabial folds, marionette lines) is that the deep fat layer that supported the cheeks decreases, and the superficial fat and skin descend in the direction of gravity.
With age, the deep fat pads atrophy, weakening their support, and the relatively superficial fat layer moves downward, causing fat to accumulate around the nasolabial folds and the jowls.
In addition, the retaining ligaments that hold the cheeks in place loosen, collagen loss reduces the skin's own elasticity, and facial bone resorption diminishes the underlying foundation. If cheek fat was lost rapidly due to extreme dieting or if weight fluctuations were frequent, sagging may appear earlier.



