Sodium hyaluronate
"I am a Certified Spin instructor and I currently take and/or teach 6 classes per week. Have done so for years and before that I was a high impact aerobics instructor which is where I probably did my damage. I also ride my road bike appx 50 miles a week. I suffer from OA and torn meniscus ( 2 places) in my left knee only. I had shot #1 and taught the same day. I immediately noticed a slight improvement with a feeling of increased stability. I no longer take Ibuprofen as needed which was usually only before spin classes. I have #2 tomorrow so I'm hoping for more improvement. BTW the shot easier than the Cortisone shot."