Canadian Brand. The Open Range Collagen Stick is a single-source protein treat that provides essential nutrients, vitamins, minerals, and they are very high in chondroitin and glucosamine which help to reduce inflammation in the joints and support healthy skin and a beautiful coat. Collagen is found below the top layer of skin (two layers below the tough outer layer that is used for leather, upholstery, and notably, rawhide) and is one of the key elements in connective tissue. This highly digestible treat also helps reduce plaque and tartar while providing chewing entertainment.