Poly(diallyldimethylammonium chloride) solution is widely used in water treatment processes as a flocculant to remove suspended particles and impurities. It helps in clarifying water by binding to fine particles, making them easier to filter out. In the paper industry, it is employed as a retention aid and drainage enhancer, improving the efficiency of paper production and the quality of the final product. The solution also finds application in the textile industry as a dye fixative, enhancing color fastness and reducing dye wastage. Additionally, it is used in cosmetics and personal care products as a conditioning agent, providing smoothness and manageability to hair. Its antimicrobial properties make it suitable for use in disinfectants and sanitizers. In the oil and gas sector, it is utilized as a drilling fluid additive to stabilize boreholes and control viscosity. Its versatility and effectiveness across various industries make it a valuable chemical solution.