Active bacteria, also known as probiotics, are a kind of bacteria that are beneficial to the human body that are parasitic in the human colon and can help the body complete its metabolism and can promote the elimination of toxins from the body. The role of active bacteria are as follows: 1, can assist in the secretion of amino acids, active small peptides, organic acids, etc. This substance can generate peroxidase, which can regulate the function of various systems and organs and maintain the ecological balance of microorganisms in the body. 2, can play the role of scavenging oxygen free radicals in the body, with the role of delaying cell aging, enhancing cell function and stabilizing the internal environment. 3, active bacteria can be in the intestinal tract cause the balance of flora without causing dysbiosis.