Cell Biologics' Human Umbilical Vein Endothelial Cells (HUVECs) are isolated from normal, healthy human umbilical veins. They are cryopreserved after primary culture and guaranteed to further expand for 15 population doublings. HUVECs are ideal for studying angiogenesis, endothelial cell biology, and endothelial cell pathophysiology. They are shipped frozen at passage 1 and have a population doubling time of 48-72 hours. Cell Biologics ensures the cells are free of mycoplasma, bacteria, yeast, fungi, HIV, hepatitis B and hepatitis C.