Cyclopeptides are a type of peptide that forms a circular structure, meaning the amino acids are linked end-to-end in a loop. This unique configuration can enhance their stability and resistance to enzymatic degradation, making them interesting for various applications in medicine and biotechnology. These compounds are often derived from natural sources, such as plants and microorganisms, and can exhibit a range of biological activities, including antimicrobial and anticancer properties. Researchers study cyclopeptides to explore their potential as therapeutic agents and to understand their mechanisms of action in biological systems.