In food applications, potassium stearate is used as a surface-active agent, fiber softener, leavening agent, blowing agent, anti-caking agent, emulsifier, and stabilizer. It can be added to cakes with a maximum usage level of 0.18 g/kg.
In cosmetic, potassium stearate is thickener in cleansing lotions and shampoos, gelling agent for some oil type cosmetics. Also it is Lubricant and emulsifier in the plastics industry.
