For prp, many salons now advertise it as stem cells prepared from autologous blood, also called stem cells, cell regeneration, etc. In fact, this understanding is completely wrong, he is not a stem cell. In medicine, PRP is a high concentration of platelet plasma prepared by special centrifugation method, which can release a high concentration of growth factors, about 5-8 kinds, mainly platelet oxidative growth factor PDGF, transforming production factor TGF-β and fibroblast growth factor FGF, and some other components with lower content. Its main characteristic is that it comes from its own blood, is non-immunogenic and non-toxic. Unlike foreign injected growth factors that grow indefinitely, it is self-limiting and therefore has a wide range of applications in medical aesthetics and in the repair of aging degeneration. In cosmetic surgery, it has three main applications: the first is to promote repair, such as skin damage and skin anti-aging has a wide range of applications. In medical aesthetics, such as dermatology, hydrophoresis, micro-needling, for deep injection, skin application, for skin quality improvement, color brightening, tissue repair are all useful. Secondly, in the medical aspect, its can promote the healing of wounds. For example, diabetic foot and other wounds that do not heal well can be repaired and regenerated by repeated application. In the joint cavity of the elderly, joint synovial fluid reduction, joint pain and meniscus damage, it can be injected into the joint cavity to improve the pain of the knee joint, and the clinical effect is still relatively good. It also has the effect of promoting blood circulation, and can be applied in scalp care and other aspects. Modern people’s hair is getting thinner and thinner, after PRP injection, it can improve the local blood circulation, so that the hair follicles can germinate again, and grow new hair while reducing hair loss, and the effect is also very good. The preparation of PRP is very complicated, not that a tube of blood can be prepared in a beauty salon, ninety percent of the publicity outside is false, and the remaining ten percent is daunting in terms of cost. For some point blood draw, and then injected afterwards, most are just away from a serum only, the preparation of PRP is much more difficult in comparison. Nowadays, many people on the internet are confusing the concept that what is manufactured after the blood is drawn is PRP, which is actually a complete misunderstanding, so be careful not to be fooled.