The responsive blend of colostrum with probiotics is a powerful immune builder. It could build your immunity predominantly with its ultra-strength high immunoglobulins, proline-rich peptides, lactoferrin, interferon to act as viral defender. And our brand Prostrum is specially engineered for the children to build their immunity naturally without any digestion problems. Usually, when an adult takes the colostrum probably the digestion issue will not happen. But in the case of children, it may lead to diarrhea, but we minded it. To buy this product :