Calcium stearate is a chemical compound that consists of calcium salts of stearic acid. It is a white, waxy powder or solid that is insoluble in water. Calcium stearate is commonly used as a lubricant, stabilizer, and release agent in various industries, including plastics, rubber, pharmaceuticals, cosmetics, and food processing. It helps improve the flow properties of materials, acts as a mold release agent, and provides stability to formulations. Calcium stearate is generally regarded as safe for use in these applications.