Transfer Factor Oral Solution mainly has effects on the digestive system, respiratory system, endocrine system and nervous system. It mainly has the effects of improving metabolism, improving circulation, increasing the immunity of the body as well as making the immune function of the body improve. The effects on the digestive tract can promote digestion and absorption, promote gastrointestinal peristalsis, enhance food absorption and relieve constipation, etc. The effects on the respiratory system, such as increasing respiratory immunity, can reduce the incidence of upper respiratory tract infections, tonsillitis, pneumonia and other diseases. For the circulatory system and endocrine system, it can increase cardiovascular barrier and reduce the incidence of coronary atherosclerosis, cerebrovascular accidents and other diseases; for the nervous system, transfer factor oral solution can also promote sleep, reduce neurasthenia and increase sleep quality.