Schiff Move Free Plus MSM & Vitamin D3 formula contains premium-quality ingredients to comfort your joints with just two tablets per day:Uniflex: a clinically tested mineral complex found naturally in fruits and vegetables that is patented to deliver protection and comfort of joints.Joint Fluid : Helps to lubricate, rejuvenate, re-hydrate and repair joints. Clinical studies show that oral hyaluronic acid is absorbed into joints.Glucosamine: Helps by strengthening, protecting and rebuilding joints.Chondroitin: Assists in lubricating and cushioning joints.Methylsulfonylmethane (MSM): A natural source of sulfur found in the body which is important in the formation of collagen in joints.Vitamin D3: To promote healthier joint cartilage.At Schiff they're dedicated to finding the most effective ways to help people move better and feel better. Move Free's formula takes Glucosamine/Chondroitin to the next level by adding Uniflex, Hyaluronic Acid, MSM and Vitamin D. So, it actually helps improve your joint health. WITH THE BENEFITS OF VITAMIN D3Vitamin D3 helps your overall bone health and your joint movement in two significant ways: first, Vitamin D3 helps your bones absorb calcium better and second, it helps your bones retain the calcium already in them. This is very important because as we age our bones lose calcium.