This phenol red-free basal medium is designed for the growth and maintenance of human large vessel endothelial cells in a serum-free environment. Ecose™ Human Large Vessel Endothelial Cell Basal Medium supports cellular health and functionality without the interference of phenol red, making it ideal for sensitive experimental setups such as hormone studies. Its optimized formulation ensures high cell viability and reproducibility, providing a consistent, animal-origin-free solution for vascular research, angiogenesis studies, and therapeutic applications.