Phosphatidylethanolamines are widely used in pharmaceutical and cosmetic formulations due to their role as natural surfactants and membrane stabilizers. They are key components in liposome formation, enabling efficient drug delivery by enhancing cellular uptake and protecting active compounds from degradation. In parenteral nutrition, they support lipid emulsions that provide essential fatty acids and energy. Their biocompatibility and ability to fuse with cell membranes make them valuable in gene therapy and vaccine development. In skincare products, they improve moisture retention and help maintain the skin’s barrier function. Additionally, they serve as emulsifiers in food and nutraceutical industries, contributing to product stability and bioavailability of nutrients.