In cell biology, processes such as cell differentiation, cell cycle and cell survival are affected by signals stimulated through cell adhesion. Therefore adhesion plays a fundamental role in <i>in vitro studies</i>. ABM’s Applied Cell Extracellular Matrix composes mainly of type I collagen, isolated from rat (<i>Rattus rattus</i>) tail tendon. Type I collagen is the most abundant form of collagen and differs from other collagens by its low lysine hydroxylation and low carbohydrate composition. This product is suitable for usage as a solid gel or for coating of culture wares. ABM’s Applied Cell Extracellular matrix on culture surfaces have been shown to enhance cell attachment in a wide variety of cell lines such as hepatocytes, fibroblasts and epithelial cells.