Hylan g-f 20
"I had orthoscopic surgery on both knees for meniscal turns from over use during my time in the military. After choosing the injections verses cortisones or steroid shots I've had excellent results. I'm 45 and still run 4 miles every other day without any pain. The injections were not painful and took only minutes in the doctors office. I finished two series and now ready for my third. I give it and excellent rating."