... Product Introduction: Collagen is the primary structural protein found in the connective tissues in the body, including the skin, bones, cartilage, ... of fresh Marine fish , Bovine, Porcine, and Chicken ,in the form of powder,so its very edible. Take different techniques, ... controlled3.Light color and no unpleasant odor4.Good solubility in water at room temperature5.No antiseptic additives, pure natural ...