Recently many friends will ask if fat transfer filling the chest and face will cause sagging, today we will analyze one or two. There are two types of proteins in the dermis of the skin, collagen and elastin, which support the skin to make it full and firm. When these two proteins naturally decrease due to the body’s aging process, the cell-to-cell fibers also degrade over time, causing the skin to lose elasticity. Fat and muscle are the greatest support for the skin, and the loss of subcutaneous fat and muscle laxity caused by aging, weight loss, uneven nutrition, and lack of exercise can also cause the skin to lose support and sag. Will sagging be accelerated after fat transfer? The first thing to be sure is that the fat filler needs to successfully establish blood flow to the desired area in order to become viable. Your own fat does not have this specific property of accelerating sagging. We say that many friends will sag even if they do not do autologous fat filler for their face or chest, so what is the real cause of sagging? Breast sagging is mainly due to the lack of connective tissue support; facial skin sagging is due to subcutaneous fat loss, muscle relaxation can also make the skin lose support and sagging. Of course, there are other factors such as gravity, heredity, mental stress, sun exposure and smoking can also transform the skin structure and eventually make the skin lose elasticity, causing facial sagging. After fat transfer, there is no fat reabsorption, no fat loss and no problem of accelerated sagging.