The Nature’s Own Dog Chews all natural dental beef hooves are a great dental chew.  These  ALL natural dental hooves have no additives or preservatives. Many bones have added liquid smoke(artificial flavours) or may even be deep fried. Ours are slow air dried (dehydrated) to properly preserve the flavours dogs love .  No hormones or antibiotics. Your dog’s teeth will scrape against the hoof to support proper oral hygiene. This is from free range cattle.