Dietary Supplement Easy to Swallow Capsules Helps Maintain Structural Integrity of Joints and Connective Tissue Purity & Potency Guaranteed Glucosamine exists naturally in the body and is a building block for healthy cartilage and connective tissue. Recent studies have validated its relationship to enhanced mobility. It can protect cartilage and is also beneficial for athletes experiencing connective tissue stress. Natural Factors Glucosamine Sulfate is tested for potency and heavy metals in order to meet our high standards. All Natural Factors products are manufactured in accordance with the Government of Canada's Good Manufacturing Practices (GMP), among the highest standards in the world.