Collagen is produced from animal skin or gristle. We have the following collagen: 1. Porcine collagen 2. Chiken collagen II 3. Bovine collagen 4. Fish collagen We list our Gelatin products as follows: 1. Medicine Gelatin 2. Edible Gelatin 3. Industrial Gelatin 4. Match Gelatin 5. Bone Glue 6. Hot melt Adhesives Powder 7. Hydrolyzed Animal Protein