Chemoprevention is a form of cancer prevention that involves the use of natural or synthetic substances to inhibit, delay, or reverse the process of carcinogenesis. This area of research focuses on identifying and developing compounds that can prevent the development of cancer by targeting specific molecular pathways involved in tumor formation. Chemopreventive agents can include vitamins, minerals, phytochemicals, and pharmaceutical drugs, and they are typically administered to individuals at increased risk of developing cancer. The goal of chemoprevention is to reduce the incidence and mortality of cancer by inhibiting the initiation and progression of tumors before they become clinically apparent.