The iMatrix name is a brand of Matrixome (www.matrixome.co.jp/en), a company focused on cell culture reagents. Founded in 2015, the major shareholder is Nippi, Inc. (Japan). The products are primarily proteins or biomaterials that provide scaffolding for mammalian cells to adhere to culture plates for various applications. The iMatrix-511 product of Matrixome is a proteolytic derivative of human laminin that interact swith integrin-protein subtypes which are transmembrane proteins on the surface of human cells (www.matrixome.co.jp/en/about/background). The iMatrix-511 protein is a very popular and effective surface matrix for cultivation of induced pluripotent stem cells. Other kinds of iMartrix products have also available from Matrixome for other cell culture applications. REPROCELL's portolio includes only products relevant to stem cell research.