Embryonic stem cells (ESCs) are stem cells isolated from the inner cell mass of blastocysts, capable of in vitro culture and possessing developmental pluripotency. They have unlimited expansion and directed differentiation abilities in vitro, profoundly impacting fields such as gene function research, cell and gene therapy, and drug screening, making them a cutting-edge focus of global life science research. OriCell™ embryonic stem cell series products have been rigorously tested to ensure they are free from contaminants (such as bacteria, fungi, mycoplasma and endotoxins) . They can be passaged long-term in vitro, maintain a stable diploid karyotype, express specific embryonic stem cell markers, and differentiate into various tissue and cell types derived from all three germ layers. In immunodeficient mice, these cells can form teratomas.