This product is a specialized culture medium designed for the in vitro cultivation of human umbilical vein endothelial cells. Its formulation precisely mimics the physiological environment of human vascular endothelial cells, rich in key growth factors such as VEGF and bFGF that promote proliferation and maintenance. It efficiently supports human umbilical vein endothelial cell adhesion, migration, and luminal structure formation, while stably maintaining their characteristic cobblestone morphology and expression of relevant markers including CD31 and vWF.