Serum cosmetic is currently used to get rid of wrinkles and enlarged pores on the face and neck caused by aging. By collecting the human body’s own venous blood, after centrifugal processing to remove red blood cells and water-based plasma, platelet-rich plasma and a small amount of white blood cells, rich in growth factors, will be obtained, and then injected back into the face and neck skin between the epidermis and dermis, which can increase the collagen and elastic fibers and other components in the skin, so that The skin texture gradually lightens and the pores gradually shrink, thus reversing the aging state of the skin. Serum cosmetology mainly uses blood cells, which has high requirements for cell separation technology and sterile environment, and has certain hazards, as follows: 1. infection: the injection is an invasive operation, so there is a possibility of infection; 2. bruising: usually disappears on its own after 7-10 days; 3. redness: usually disappears on its own after 1-2 hours; 4. local swelling and petechiae. In addition to the above-mentioned adverse consequences, if one is severely deficient in nutrition, the candidate will experience failure in regeneration of skin cells after surgery and lasting damage will occur, which is a common risk of performing serum cosmetic surgery. It is recommended to choose a regular medical institution and correctly use the treatment technique that combines internal and external aspects in order to achieve safe, reliable and lasting effects.