Autologous dermal fat (cutaneous fascia) youthline surgery is most superior in terms of biocompatibility. The texture is soft as and similar to the human skin, and no complications such as foreign body reaction or infection occur. Generally, other body parts with relatively thick skin (such as the groin, gluteal fold, or inferior gluteal line) are regarded as the source of dermal fat grafts. Dr. Chuang takes out the complete dermal layer with partial subcutaneous fat from these sites and sculpts them into two symmetric and appropriate strips, which are emplaced into the detached subcutaneous path via incisions at the lower eyelid, and then fixates them at both ends to complete the entire surgery. The donor site is given a simple stitching, and attention should be paid to postoperative care in case of scarring.