All our rawhide is 100% all natural with no additives or preservatives. Natures’ Choice is slow-dried to preserve the natural proteins and flavor before being rolled into a variety of shapes and sizes for your special pet. Chewing rawhide provides several benefits for both you and your pet. It helps to maintain your pet’s dental health by removing tarter and massaging your dog’s gums. Rawhide also helps to prevent destructive chewing by satisfying your dog’s natural desire to chew.