Polysuccinimide is widely used in agriculture as a biodegradable and non-toxic soil conditioner. It enhances water retention in soil, promoting better plant growth and reducing the need for frequent irrigation. In the field of water treatment, it serves as an effective scale inhibitor, preventing the buildup of mineral deposits in industrial water systems. Additionally, it is utilized in the production of biodegradable plastics, offering an eco-friendly alternative to traditional petroleum-based polymers. Its biocompatibility also makes it suitable for medical applications, such as drug delivery systems and wound care products.