Collagen Bully Rolls for Dogs are healthy, all-natural, rawhide alternative dog chews that feature beef + collagen as the #1 ingredient. Made of hydrolyzed collagen peptides, they are an all-natural source of protein and are highly digestible. They are scientifically tested to last two times longer than leading rawhide alternatives. From our ranches to our chews, we pledge to stay Tru. Rawhide-Alternative Collagen Rolls Collagen is a vital protein found in the connective tissues of animals, including dogs. It plays a crucial role in maintaining healthy skin, tendons, joints, bones, and overall elasticity. As dogs get older or experience health issues such as arthritis, their bodies may produce less collagen. This can lead to joint pain and decreased mobility. Promotes Healthy Skin, Tendons, Joints, Bones, Connective Tissue and Overall Elasticity TruRanch Collagen Rolls are a great way to support your dog's health by providing them with a natural source of collagen. As they chew, the collagen is broken down into smaller peptides that can be easily absorbed by the body. This helps promote healthy skin, tendons, joints, bones, connective tissue and overall elasticity in dogs of all ages. Sourced from Free-Range, Grass-Fed Cattle