Amino acid injections have the following benefits to the human body: 1. Amino acids can synthesize protein in the body, which is an essential material component of the human body. People whose protein synthesis function has decreased can supplement exogenous amino acids to replenish the energy substances necessary for body synthesis.2. Amino acid injection can improve certain human immunity and increase human resistance.3. Amino acid injection can play the role of an immune agent, which can play the role of regulating human immunity and making human immunity balanced. In particular, patients with large burns, inability to eat, and cancer can play an immunomodulatory role by injecting amino acids. But playing amino acids also has certain harmful effects, for example, it can increase the toxic side effects of the liver and kidneys, and if you play amino acids in excess can also cause drug secondary to liver and kidney function damage.