N-Acetylcysteamine is widely used in biochemical research as a thiol-blocking agent to study enzyme activity and protein function. It serves as a precursor in the synthesis of coenzyme A and other biologically active compounds. In industrial applications, it is employed in the production of pharmaceuticals, particularly in the development of drugs targeting oxidative stress and inflammation. Additionally, it is utilized in cosmetic formulations for its antioxidant properties, helping to protect skin from damage caused by free radicals. Its role in chelating heavy metals also makes it valuable in detoxification processes and environmental remediation efforts.