The development of an innovative method to extract chitosan from fish scales represents a significant endeavor, particularly given the wide-ranging medical and industrial applications of this valuable biopolymer. Chitosan, known for its uses in cholesterol management, reducing fat absorption, and aiding in wound healing, is currently sourced primarily from crustacean shells. Fish scales, often a discarded byproduct in the fish processing industry, present an untapped resource for chitosan production. The challenge in this development lies in devising an extraction process that is both environmentally sustainable and cost-effective. Traditional methods of chitosan extraction can be chemically intensive and environmentally burdensome. Therefore, the task at hand involves not only extracting chitosan efficiently but doing so in a way that minimizes environmental impact. This requires innovative approaches to reduce the use of harsh chemicals and energy consumption, ensuring that the process aligns with the principles of green chemistry. Moreover, for this initiative to be viable and contribute to the fisheries sector, the cost-effectiveness of the process is important. The method must be economically feasible for widespread adoption, allowing fisheries and processing plants to convert what is currently waste into a valuable commodity. This transformation of fish scales into chitosan aligns with the goals of a circular economy, where waste products are reutilized, adding value and reducing environmental impact. Successfully addressing these challenges will not only enhance the sustainability of the fisheries sector but also contribute to the broader availability of chitosan for various beneficial applications.