I have heard is a gel injection. What exactly is it? I’m going through the start of arthritis in both my knees. My meniscus is frayed and my Cartlidge is then it was very painful. I just had Cortizone shots in both knees. My right one is doing well, but my left one is still a problem I have heard of hyaluronic acid injections and not sure what they do or if they’re any good so I’m interested in what these gel shots are also just learning about everything I can do because eventually I’ll be going on bone hopefully not too soon in a few years at least good luck tomorrow.