... absorption of calcium and iron. CPP is water soluble white powder, it has good solubility and can bear processing at high ... .0 times for health care products.SpecificationItemIndexTotal nitrogen (dry base),% ≥12.5CPP content(dry base),% ≥20Moisture,% ≤8Ash,% ≤8As,mg/kg ≤0.5Pb ... the rain,low temperature.18 months in low temperature. iron powder supplement Casein Phosphopeptides(CPP)