Discovering Hymovis®

Hyaluronic Acid: a fully biocompatible substance

Hyaluronic Acid (HA) is a biological polymer belonging to the family of glycosaminoglycans (GAGs) naturally present in the human body, but also in bacteria, fungi and animals. Its biocompatibility with the human body allows perfect integration with all tissues.

The hyaluronic acid present in tissues is continually metabolised and eliminated, so that the body can continue to synthesise and replace it.

During physiological ageing or in the presence of particular pathological conditions, the production of hyaluronic acid tends to diminish, thereby favouring the onset of related phenomena, such as skin ageing, osteoarthritis (OA).

Improvement of joint function and pain relief

When injected directly into the joint (Intra-Articular Hyaluronic Acid – IAHA -therapy), hyaluronic acid has been shown to prevent or delay the onset of arthritic lesions to the joint cartilage. This is because it restores the viscoelasticity of the synovial fluid, promoting mobility and relieving pain. Moreover, it has also been shown to slowdown the physiological progression of cartilage damage.

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.

Why it is used

In several animal models of osteoarthritis, the intra-articular injection of exogenous hyaluronic acid has proven useful in preventing or delaying the onset of arthritic lesions in the joint cartilage. Chronic joint pain affects millions of people around the world, and tends to worsen with progressive ageing; it can also occur as a result of trauma or microtrauma to the joint.

Not all hyaluronic acids are the same

The properties of hyaluronic acid depend on the length of the chain and on its molecular weight. There are 4 generations of hyaluronic acid.


Hymovis® is indicated for the treatment of pain in osteoarthritic joints, and in the conservative treatment of the meniscal lesion of the knee, and for the improvement of joint mobility through the enhancement of synovial fluid viscoelasticity.

A treatment cycle for osteoarthritic joints consists of two injections administered at one week interval.

Injection therapy with Hymovis® should only be administered by a specialist.

Find out more about Hymovis®: from diagnosis to treatment with the hyaluronic acid hydrogel