Canine Naturals Hide-Free Beef Chews start with USA or North American sourced beef as the first ingredient and use absolutely no rawhide or collagen. They contain no artificial flavors, colors, preservatives or fillers and are highly digestible. These long-lasting chews contain no chicken or poultry and are ideal for dogs with allergies. They are a single-source protein chew made without corn, wheat, soy, or peas. They fulfill a dog's natural chewing instinct and help clean teeth and gums.