Promoting Synovial Fluid Production for Better Joint Health Hyaluronic Acid Injections for Knee Osteoarthritis Natural Joint Lubrication: How to Keep Your Joints Healthy Liv Hospital The Science Behind Knee Gel Injections: How Synovial Fluid Supplements Relieve Osteoarthritis Pain AMSK Clinic A gel injection for the knee helps improve joint lubrication when natural synovial fluid becomes thinner or less effective, which often happens with arthritis., This gel acts as a cushion and