... Top Collagen Brand of China! Product Name:HaiJianTang Collagen(peptide)Quality Standard:Food-GradeBatch No.110414A1D01Mol. Wt:2200Da Hydroxyproline ... 24 months under normal temperature. As functional ingredients, add to milk, yogurt, meat products, protein drinks, collagen health products, ... good collagen is constitute of amino acid formed of peptide chemical bond which is very stable for the infuence ...