In Vivo Imaging Reagents.  Caliper offers a large array of tools and reagents to facilitate drug discovery and development. These include XenoLight Bioluminescent Substrates, XenoLight NIR Fluorescent Reagents, Bioware Light Producing Cell Lines and Microorganisms.  Caliper reagents are optimized for use with your IVIS system and backed by our scientific expertise and applications support.