This product is a well-defined serum-free medium specifically formulated to support the efficient expansion and stable maintenance of human embryonic stem cells (hESCs) in a microcarrier suspension culture system. Its unique formulation precisely regulates cell-microcarrier adhesion factors and proliferative signals, significantly enhancing stem cell adhesion efficiency and survival rates on three-dimensional microcarrier surfaces. It supports high-density, homogeneous cluster growth in stirred bioreactors while maintaining karyotype stability, high alkaline phosphatase activity, and pluripotency throughout the process.