This method involves the collection of fats from other body parts, which are mixed with growth factors after extraction and screening before they are injected into the depression site of the midface at a proper dose to sculpt the plumpness of the submalar triangle. This surgery has simpler procedures and presents a faster recovery than cheekbone implant surgery and is often combined with injection at other facial areas (such as the depression of nasolabial folds, lateral cheeks, and temple) to achieve a coordinated and esthetic result. Nevertheless, because fats would gradually induce the weight load into the skin to result in premature cheek looseness or droopiness and other unexpected side effects afterwards, combined with uncertain factors such as the self-absorption of fats, Dr. Chuang thinks that this method is only applicable to young patients and that fats should be injected at an appropriate amount only for the purpose of auxiliary correction. The excess injection of fats should be avoided in case of risks of accelerated aging or droopiness of the midface skin in the future.