Our Collagen Sticks are crafted from a single sheet of the inner, collagen-rich layer of beef skin known as corium. Collagen brings benefits to nearly every part of your beloved pup. It starts with the gentle and natural dental and jaw muscle benefits of chewing a durable treat. From there, the highly digestible collagen is quickly converted into essential amino acids that help rebuild and repair your dog's muscles, reduce inflammation throughout the body, strengthen bones and joints, and even moisten and shine your dog's skin and coat so they can look as good as they feel. Like bully sticks, healthy collagen beef sticks are a long lasting chew that you pup will crave!