WSP-5 is commonly used as a water-soluble polymer in pharmaceutical formulations to enhance drug delivery and solubility. It acts as a stabilizer and dispersing agent in liquid and semi-solid preparations, improving the uniformity and shelf life of active ingredients. In industrial applications, WSP-5 serves as a thickening agent in water-based systems, providing viscosity control in coatings, adhesives, and cleaning products. Its film-forming properties make it suitable for use in controlled-release agricultural formulations, where it helps regulate the dispersion of nutrients or pesticides. Additionally, it is employed in personal care products for its emulsion-stabilizing and moisturizing characteristics, contributing to the texture and performance of lotions and gels.