* Advanced Triple Strength + Vitamin D3 * Compare Active Ingredients to Osteo Bi-Flex® Triple Strength + D† * Dietary Supplement * 2 Per Day * Guaranteed Quality - Laboratory Tested Many recent scientific studies have shown the effectiveness of taking supplements with the proper combination of glucosamine HCl and Chondroitin Sulfate. These compounds found in the soft cartilage, tendons and synovial fluid, are essential to the healthy functioning of tendons and joints, especially with advancing age. Glucosamine & Chondroitin Complex Triple Strength + Vitamin D3 combines these two nutritional elements in the proper amounts for your effective use. Plus the added Vitamin D3 supports bone strength and your immune system.