Cardiac Myocyte Growth Supplement-serum free (CMGS-sf) is a sterile, concentrated (100X) solution which contains growth factors, hormones, and proteins necessary for the culture of normal cardiac myocytes under serum free conditions. The supplement is formulated (quantitatively and qualitatively) to provide an optimally balanced environment that selectively supports normal cardiac myocytes in vitro. This product is for research use only. It is not approved for human or animal use, or for application in in vitro diagnostic procedures.