Colostrum is the nutrient-rich fluid produced by mammals in the first days after birth. Think of it as nature's original immune primer, packed with growth factors, immunoglobulins, and bioactive compounds that no synthetic supplement can replicate. Our colostrum products feature bovine colostrum standardized to 40% IgG (or immunoglobulin G), one of the highest concentrations available, cold-processed to preserve the full spectrum of bioactive compounds that heat can destroy, and rigorously tested for purity.