All natural. Long lasting flavor. Preferred over natural rawhide 6 to 1 (Independent tests show that the patented flavor infused technology used in Hartz Dental Flavor Infused beefhide is preferred 6 to 1 over natural rawhide). The infusion makes the difference. Our flavor is not sprayed or dipped. It's infused throughout the hide to increase the flavor and invite dogs to chew longer. Hartz Dental Flavor Infused Beefhide Curls are infused with a great tasting flavor your dog can't resist. The patented infusion process ensures that flavor penetrates throughout the hide giving your dog long lasting chewing enjoyment. The sealed bag locks in the great taste and aroma of Hartz Dental Flavor Infused Beefhide Curls. Always provide plenty of drinking water, supervise play and schedule regular veterinary visits. Made in Brazil, Argentina, Colombia, Mexico or China.