Oatey 32 fl oz Grease 30601 at Lowes.com Joint movement depends on synovial fluid, a slippery liquid that reduces friction and nourishes cartilage. This fluid is constantly renewed through joint movement and adequate water availability. When hydration is reduced, synovial Pipe Joint Lubricant Blue Monster LUBE JOB Lifetime Skin Pill Supplements: Natural Hyaluronic Acid Capsules, 140 Mg, 60 Count Walmart.com Natural Factors Celadrin Joint Health Joint fluid fills the small space between the ends of bones and acts like a natural lubricant. The synovial membrane creates this thick, silky fluid using long molecules that hold water and give it a