... /amino acids that human body needs, enhance immunity, nourish skin, relieve the pain on joints, cure the lack of calcium ... :Hai Jian Tang collgenSafe:Raw material was Gadous macrocephaius skin which came from the Alaska deep-sea with 0- ... zymohydrolysis technology of leading international,using 100% Gadous macrocephaius skin by low temperature,reserving activity collagen supermely.Purity:Contenting of ...