JOINT-X Glucosamine-chondroitin complex JOINT-X is a complex formula of 4 ingredients, designed mainly to contribute to the maintenance of normal joints. It contains the well-known and popular Glucosamine Sulphate, Chondroitin Sulphate, Gelatin and Methylsulfonylmethane, also known as MSM (Gelatin is hydrolyzed collagen).