Epidermal growth factor (EGF) is a protein that plays a crucial role in cell growth, proliferation, and differentiation. It binds to specific receptors on the surface of cells, triggering a series of biological processes that promote healing and tissue regeneration. EGF is naturally found in various tissues and is important for skin health. In medicine, EGF is often used in treatments for wounds and skin conditions. It is also studied for its potential in cancer therapy, as it can influence tumor growth. Researchers continue to explore its applications in regenerative medicine and cosmetic products, highlighting its significance in both health and beauty.