Bovine colostrum is the first milk produced by cows after calving. It is rich in immune-boosting compounds, growth factors, and nutrients, making it a popular supplement for humans seeking enhanced immunity, gut health, and athletic performance.Colostrum - the milk of a cow within 72 hours after giving birth, contains extremely high levels of immunoactive globulin IgG. Immunoglobulin is a type of active protein. It is a globulin with antibody activity or a chemical structure similar to that of antibodies. There are five types of immunoglobulins, among which IgG is the main type. It can more easily penetrate capillaries and diffuse into the interstitial Spaces than other globulins, thus better exerting the functions of anti-infection, neutralizing toxins and regulating the body.