Porcine Gelatin Derived from Pig Skins. Porcine gelatin derived exclusively from pig skins intended for any use (human or animal consumption) is eligible for entry into Korea with the following certification statements on the current VS 16-4, Export Certificate for Animal Products:orcine Gelatin Derived from Pig Skins. Porcine gelatin derived exclusively from pig skins intended for any use (human or animal consumption) is eligible for entry into Korea with the following certification statements on the current VS 16-4, Export Certificate for Animal Products: