Hyaluronic Acid is found in all connective tissue, joints, body cavities, joint spaces, and tissue surfaces. The highest levels are found in the synovial fluid of all joints and the skin. Hyaluronic Acid is important in the lubrication of joints, integrity of tissues, fighting bacterial invasiveness, elasticity of skin, vision, and molecular transport between cells.Hyaluronic Acid fills the intercellular space between collagen and other cells, providing support and the essential framework for tissues.

In the joint, Hyaluronic Acid also acts as a shock absorber and structural stabilizer. Hyaluronic Acid acts like the oil in an engine. The oil of engine needs to be changed at regular intervals, since it loses viscosity and becomes thinner and less able to protect metal surfaces as it ages. Likewise, the viscosity of the leg or hand joint hyaluronic acidbreaks down with age and gradually becomes unable to cushion the joint cartilage. This situation triggers depletion of the cartilage around the joints. In recent years, HA has become recognized as a successful therapy for people with joint problems. For example, clinical studies clearly show that repeated cycles of HA injections improve knee osteoarthritis symptoms and continue to benefit patients for at least 1 year after every cycle of injections.