Chitosan hydrochloride is widely used in the pharmaceutical industry as a drug delivery agent due to its biocompatibility and ability to enhance the absorption of active ingredients. It is also employed in wound healing products, where it promotes tissue regeneration and exhibits antibacterial properties. In the food industry, it serves as a natural preservative and viscosity enhancer, extending the shelf life of perishable items by inhibiting microbial growth and improving texture. Additionally, it is utilized in water treatment processes to remove heavy metals and other contaminants through its chelating abilities. In cosmetics, it acts as a moisturizing agent with antibacterial properties and improves the texture of skincare formulations. In agriculture, it enhances the efficiency of fertilizers and pesticides, aiding nutrient absorption by plants and reducing harmful chemical usage. Its versatility makes it valuable across multiple sectors.