Hyaluronic acid (HA) is a chondroprotector secreted by cartilage cells and present in large quantities in healthy joints.
In an arthritic joint, the HA is degraded, its concentration drops, which leads to a reduction in the properties of lubrication and protection of the cartilage.
HA shows anti-inflammatory, analgesic effects and imparts visco-elastic and lubricating properties to joint fluid.
Intra-articular injections of hyaluronic acid (viscosupplementation) are commonly practiced in human medicine.
The majority of experimental studies in dogs show positive effects.