100% natural and edible Icelandic Cod Skin Fish Pieces are single ingredient and contain no additives, preservatives or supplements. They come only from the pure icy waters of Iceland and are line-caught daily and processedimmediately. Not only are they delicious for your dog, they reduce tartar and plaque build-up for healthier gums and teeth. They are also a great natural source of Omega-3 & Omega-6 fatty acids, promoting healthy skin and coat for your pet. With just one ingredient, these tasty and healthy treats are perfect for dogs with protein sensitivities.