Promotes Joint Comfort. With Beef Gelatin, Glucosamine Sulfate and MSM. Joint Support Powder is a combination of ingredients that help to support the formation and function of healthy joint tissue. This product uses Hydrolyzed Beef Gelatin, which consists primarily of collagen that has been enzymatically treated for ease of absorption, as well as MSM (Methylsulfonylmethane), a biologically active form of sulfur, that serve as building blocks for collagen synthesis. Glucosamine is included as an essential structural component that is naturally present in bones and joints. Numerous clinical studies have demonstrated that Glucosamine can help to support healthy joint structures and promote joint comfort.