Chitosan is widely used in the agricultural industry as a natural biostimulant and seed coating agent. It enhances plant growth, improves resistance to diseases, and increases crop yield by stimulating the plant's immune system. In water treatment, chitosan acts as an effective flocculant, helping to remove heavy metals, dyes, and other pollutants from wastewater due to its ability to bind with negatively charged particles. In the medical field, it is utilized in wound healing products, such as dressings and bandages, due to its biocompatibility, antimicrobial properties, and ability to promote tissue regeneration. Additionally, chitosan is employed in the food industry as a preservative and edible coating to extend the shelf life of fruits, vegetables, and seafood by reducing microbial growth and moisture loss. It is also used in drug delivery systems to improve the bioavailability and controlled release of pharmaceutical compounds. In cosmetics, chitosan is incorporated into skincare products for its moisturizing, anti-aging, and film-forming properties.