MCE Polyamine Supplement (1000×) can be used as a component of the CEPT Cocktail in combination with Emricasan, Chroman 1, and trans-ISRIB to enhance the survival of pluripotent stem cells (PSCs) and promote single-cell clonal expansion. In addition, this supplement improves the viability of PSCs and their differentiated derivatives during cryopreservation, organoid culture, single-cell cloning, and genome editing, thereby enhancing the robustness and reproducibility of downstream applications.