Used as a preservative in cosmetics, pharmaceuticals, and food products due to its effective antimicrobial properties. It prevents the growth of bacteria, yeast, and mold, extending shelf life. Commonly found in creams, lotions, shampoos, and liquid medications where long-term stability is required. Its sodium salt form improves solubility in water-based formulations compared to the free acid form, making it easier to incorporate into aqueous systems. Also used in combination with other parabens to enhance broad-spectrum preservation.