Lactoferrin is a safe and reliable natural substance extracted from cow’s milk, with no side effects for babies. Lactoferrin, commonly found in the milk and other tissue fluids of mammals (e.g. in tears, bile, synovial fluid, neutrophils), is most abundant in colostrum and gradually decreases with the duration of breastfeeding. Lactoferrin, a non-heme iron-binding protein, is a member of the transferrin family and is one of the nutrients used by new life to gain immune protection for the first time. 1.Promote the body’s absorption of iron: After a baby sucks on breast milk, the lactoferrin in breast milk will bind with iron in his digestive tract with high affinity, transporting iron to the cells of the small intestine and releasing it to supply the baby’s whole body needs. Another special function of lactoferrin is that it is antibacterial, antiseptic and antiviral, and it is not harmful to probiotics (such as bifidobacteria) in the human body. Lactoferrin also promotes and enhances the immune function of immune cells such as neutrophils, macrophages and natural killer cells in the human body, and it also plays a role in regulating the production of antibodies in the body. 2. Lactoferrin is suitable for: people with low immunity; patients recovering from surgery or diseases; babies and premature babies who do not have breast milk to eat; mothers-to-be during the preparation period or pregnancy; children or elderly people who are weak and sickly to supplement.