Potassium stearate is used as a surfactant and emulsifying agent in cosmetic and personal care products such as creams, lotions, and shaving foams, helping to stabilize formulations by mixing oil and water components. It also serves as a lubricant in tablet and capsule manufacturing in the pharmaceutical industry. Commonly found in soaps and detergents, where it enhances cleaning efficiency, particularly in hard water. In the food industry, it acts as a dough conditioner, whipping agent, and emulsifier. Additionally, it functions as a lubricant and release agent in plastic and rubber processing, and as a dispersing agent in paints, inks, and coatings. Its emollient properties make it suitable for skin care products, providing moisture retention without irritation.