Hello beautiful! Our all-natural collagen collection, sourced from bovine collagen, transforms chew time into your dog's spa day. These all-beef chews are available in a variety of sizes and shapes, including sticks, braids, a ring, and a spring. They are 100% natural and are free from grain, gluten, wheat, corn, and soy. Naturally rich in chondroitin and glucosamine, which support healthy joints, healthy skin, and a beautiful, shiny coat.