Polypeptide is a compound composed of various amino acids and protein molecules. Therefore, many skin care products have added peptides, and some foods with beauty beauty function also contain peptides. It can increase skin elasticity, help lock in moisture, reduce wrinkles and delay skin aging. It can cause fever, rash and other reactions, and the symptoms can disappear after stopping the drug. It is recommended to go to the regular hospital outpatient clinic to choose injection, and pay attention to food hygiene at ordinary times. It can cause fever, rash and other reactions, and the symptoms can disappear after stopping the drug. It is recommended to go to the regular hospital outpatient clinic to choose injection, and pay attention to food hygiene at ordinary times.