The technique “Nanofat” and “microfat” consists of extracting fat from the patient (autologous fat), then centrifuging and filtering this sample in order to obtain an emulsion of stem cells, and finally reinjecting the cellular concentrate at the level of the face, the neckline and hands. This procedure is performed under local anesthesia. The fat is removed using a cannula. The fatty tissue from the belly and thighs is rich in stem cells. These cells are valuable and powerful, and have a very important role in tissue regeneration. Injected into the skin, they turn into fibroblasts and start making new collagen and elastin.