This product is a low-serum formulation culture medium based on the classic MEM basal medium and specially optimized. By incorporating key serum-free supplements such as insulin, transferrin, and selenium, it significantly reduces dependence on fetal bovine serum (typically to 1%-2%). This formulation effectively supports the adhesion and proliferation of various mammalian cells (e.g., fibroblasts, epithelial cells), while substantially minimizing experimental variability caused by serum batch differences. It ensures higher stability and reproducibility in culture outcomes.