Hyaluronic acid is a gel-like substance that happens naturally in the synovial fluid within each joint capsule that surrounds all joints. Hyaluronic acid serves as being a lubricant that allows bones to maneuver effortlessly inside of a joint and offers shock absorption to reduce stress and friction inside joints. Injuries: https://www.theorthopaedicandpainpractice.com/understanding-and-treating-elderly-knee-pain/