Magnesium stearate is widely used as a pharmaceutical excipient in tablets capsules and powders and it is also used in cosmetics food products and some industrial formulations.

Its primary purpose is to act as a lubricant and anti-adherent reducing friction during tablet manufacturing and preventing powders from sticking to manufacturing equipment.

Magnesium stearate is the magnesium salt of stearic acid appearing as a fine white hydrophobic powder. It is generally used in small quantities to improve the flow processing and manufacturability of powdered formulations.