Normal Human Corneal Epithelial Cells (HCEC), when grown in LIOcu Medium, provide an ideal serum-free culture model for many areas of research. Common uses of HCEC are cell-matrix interactions, gene regulation and tissue development, drug development, and validation of alternative methods in toxicology.Cell Features? HCEC are cryopreserved as secondary cells, e.g. cells are isolated from human corneal tissue and expanded twice in culture vessels before being harvested for cryopreservation.HCEC are extensively tested for quality and optimal performance.AcceGen Biotech guarantees performance and quality.