Beef Organs. Collagen, Gelatin, Grass Fed Liver (Bovine) 600mg, Grass Fed Heart (Bovine) 600mg, Grass Fed Kidney (Bovine) 600mg, Grass Fed Pancreas (Bovine) 600mg, Grass Fed Spleen (Bovine) 600mg. Beta-Carotene, Collagen, Iron, Grass Fed Liver (Bovine) 600mg, Grass Fed Heart (Bovine) 600mg, Grass Fed Kidney (Bovine) 600mg, Grass Fed Pancreas (Bovine) 600mg, Grass Fed Spleen (Bovine) 600mg.