... and controlled 3.Good solubility in water Collagen (Extracted from Skin or Gristle of Marine fish, Bovine, Porcine, and Chicken) ... to absorption from man-made collagen. Collagen can be extracted from Skin or Gristle of fresh Marine fish , Bovine, Porcine, and ... Count≤1,000cfu/gmCompliedYeast & Mould≤100cfu/gmCompliedE.ColiNegativeNegativeSalmonellaNegativeNegative high purity fish collagen sources