Terra Origin Joint & Bone Capsules with Turmeric, Collagen, Glucosamine HCI, MSM and More. Glucosamine HCI: Supports cartilage, the connective tissue that cushions your joints, aids in function and comfort. MSM: Maintains joint tissue, improves joint comfort and performance. Hyaluronic Acid: Guards against the breakdown of synovial fluid, lubricating joints to avoid pain and stiffness. Vitamin D3: Aids in the absorption of calcium supporting strong bones. Vitamin K2: Helps prevent osteoporosis by keeping calcium in the bones, improves symptoms of rheumatoid arthritis and knee osteoarthritis. Vitamin K1: Works with calcium to increase bone density and strength. Calcium: Builds and protects bones, maintains bone density and helps prevent osteoporosis. Magnesium: Absorbs and metabolizes calcium, increases bone mineral density, reduces the risk of fractures, breaks and osteoporosis. Zinc: Essential for healing breaks and fractures, promotes bone density, necessary for calcium absorbtion.