Magnesium stearate is a compound composed of magnesium salts of stearic acid. It is a fine, white powder with a waxy texture. Magnesium stearate is commonly used as an excipient or inactive ingredient in pharmaceuticals, dietary supplements, and cosmetics. It serves multiple functions, including lubrication, flow enhancement, and as an anti-adherent or anti-caking agent. Magnesium stearate helps in the manufacturing process of tablets, capsules, powders, and various formulations by improving their flow properties, preventing sticking, and ensuring uniformity. It is generally recognized as safe for use in regulated quantities in these applications.