Solgar's Extra Strength Glucosamine Chondroitin MSM with Ester-C Tablets are ideal for anyone requiring extra nutritional support for their cartilage and joints. This synergistic formula is specially designed to revitalize your joints and cartilage and will leave your joints feeling lubricated and rejuvenated. This formula will also help to ease occasional joint stress due to exercise or physical activity and supports joint health by helping to maintain enzymes necessary for collagen formation in their active state.