Cell culture supplements are additives that provide essential nutrients, growth factors, and other critical components to support the growth and maintenance of cells in culture. These supplements are crucial for creating an environment that closely mimics the physiological conditions necessary for cell proliferation, differentiation, and function. The specific choice of cell culture supplement depends on the cell type, experimental goals, and the desired characteristics of the cultured cells. Overall, these supplements are indispensable tools for achieving successful and reproducible results in cell culture experiments across various scientific disciplines.