Colonic Epithelial Cell Growth Supplement (CoEpiCGS) is a medium supplement designed for the optimal growth of normal human colonic epithelial cells in vitro. It is a sterile, concentrated (100X) solution which contains growth factors, hormones, and proteins necessary for the culture of normal human colonic epithelial cells. The supplement is formulated (quantitatively and qualitatively) to provide a defined and optimally balanced growth environment that maximally promotes the growth of normal human colonic epithelial cells in vitro. The supplement is designed as an additive for Colonic Epithelial Cell Medium (CoEpiCM, Cat. No. 2951) and should be used in conjunction with that medium. This product is for research use only. It is not approved for use in humans, animals, or in vitro diagnostic procedures.