Placenta injection is actually placenta extract for injection. In Chinese medicine, placenta, also known as Zihecha, is a commonly used herbal medicine. In early medicine, it was applied directly to wounds to promote healing as soon as possible. In Western medicine, human placenta extract with scar softening solution can be injected into the scar with an efficiency of more than 95%, which shows that placenta extract has a certain effect on the repair of skin wounds. Placenta extract contains active substances that can promote fibroblast proliferation, which can restore skin elasticity, and also contains a variety of immunoglobulins, active peptides, hormones and other biologically active substances and amino acids, mineral components, which is a more ideal immunomodulator and nutritional health products. But the placenta injection can not be blindly injected, need to go to the regular hospital under the doctor’s orders to use.