Hyaluronic acid is a naturally occurring substance found in joint fluid that contributes to the lubrication and cushioning of the joint.
A hyaluronic acid (or "gel") injection — sometimes called viscosupplementation — aims to supplement this lubrication in people with knee osteoarthritis. For some patients, this may help with comfort and movement.
Suitability varies between individuals and is determined after a clinical assessment. Hyaluronic acid injections do not regenerate cartilage or cure arthritis.
Please note: the information on this page is for general education. It is not medical advice and is not a substitute for a clinical consultation.