Its role in joint health
Hyaluronic acid is naturally present in the liquid that fills the joint cavity (synovial fluid). Thus, it is responsible for the resistance and elasticity of the cartilage, and facilitates its load-bearing function. The slower the flow of synovial fluid (for example, at rest or while walking), the higher its viscosity and, therefore, its lubricating capacity. Conversely, the higher the flow (for example, while running), the lower its viscosity: the synovial fluid becomes more elastic and is able to exert a shock-absorbing action in the event of trauma or mechanical stress.
Moreover, thanks to its ability to interact with specific receptors, HA is able to control inflammatory response and pain.