Ultra. Supports Joint Mobility and Integrity. Contains Clinically Tested Ingredients in Clinically Tested Amounts. EasySolv®. Jarrow Formula Ultra Joint Builder addresses total joint health by providing nutrients for proper cartilage formation facilitating proper joint lubrication and promoting a healthy inflammatory response within the joint. . Hyaluronic Acid provides the matrix for joint lubrication (synovial fluid) skin hydration and skin repair. Hyal-Joint ® hyaluronic acid has clinically documented bioavailability having been shown to increase synovial fluid and improve joint mobility. . Chondoitin Sulfate is a major component of joint cartilage and is important in maintaining the structural integrity of this tissue. . Glucosamin Sulfate is a stable clinically studied form of glucosamine which is essential for the proper formation of tendons ligaments synovial fluid bones skins nails and blood vessels. . MSM is a sulfur donor; sulfur is essential for the formation of chondroitin sulfates. . Bromelain is a protein digesting enzyme from pineapple that affects protein turnover in the body including proteins found in joint tissue. . Calcium Fructoborate (Fruitex-B®) is a clinically documented naturally occurring plant source of the trace mineral boron. Boron is essential for healthy bone and joint function.