Stem cells that can differentiate into all organs and tissues needed by the human body, such as bones, cartilage, and muscles, are also called 'universal cells' and are also found in adult fat. During the process of replenishing subcutaneous fat after subcutaneous fat transplantation, stem cells are transplanted together. This can not only delay the aging phenomenon, but also improve the skin because of the hormones discharged from fat. Overall, it is better.