How to Use a Rabbit Vibrator (Without Feeling Awkward About It) The Lubricen knee patch is delivering the drug free ingredients which stimulate the body into producing synovial fluid the body's natural lubricant that protects the knee joint cartilage. InTouch Rugby (AXIOS) How to relieve knee pain? A knee gel injection helps improve lubrication and cushioning inside the joint when natural joint fluid becomes less effective over time This is commonly used for patients Fluid Loss In The Knee: The Dynamics Of Knee Joint Fluid The Differences Between Rabbit Vibrators vs. Bullet Vibrators