1,Quality Standard :Food-grade 2,Source:deep-sea Gadous skin 3,Mol. Wt:2200Da ... Brand of China! Product Name:HaiJianTang Collagen(peptide)Quality Standard:Food-GradeBatch No.111117A2D Mol. Wt:2200Da Hydroxyproline content: about 6 ... could access with the most of the most of the food,without taboo.store conditions:ventilated, dry, heliophobe and normal temperature ...