Say Goodbye to Knee Pain With Knee Gel Injections Gel injections for the knee involve the injection of a gel like substance into the knee joint to provide lubrication and cushioning. This treatment is often used to alleviate pain and improve mobility A Guide to Flavored Lubes Gel injections help reduce friction inside the knee joint, especially with arthritis or wear and tear., They add cushion and lubrication to make movement smoother and pain more manageable., Natural Lube: Products and DIYs to Try, Ingredients to Avoid, More