Stem cell cosmetic injection is allowed in China, which is a skin injection cosmetic technique. Stem cells are cells that can continue to differentiate and replicate. They can differentiate into various organs. In the beauty industry, stem cells are generally injected to remove wrinkles, lose weight and remove scars. However, injecting stem cells also has certain risks, because stem cells will further develop and mature after being injected into the human body, and will attack organs such as skin and liver, thus causing organ damage, and there may be risks of cancer and infection. Therefore, the injection of stem cells must be done in a regular hospital, and at the same time, a comprehensive examination must be done before it is done, and it can only be done after it is determined to avoid side effects. Different injection sites can achieve different curative effects.