1. Astragalus polysaccharide is a water-soluble heteropolysaccharide extracted, concentrated and purified from the dried roots of Astragalus mongholicus or Astragalus membranaceus. Pale yellow, fine powder, even without impurities, hygroscopic.
2. Lactoferrin is an iron-binding glycoprotein with a molecular weight of 80kDa, belonging to the transferrin family, and both of them will be effective only if they are used all the time.