Powder media can be reconstituted to provide basic nutrients for all cell culture applications. We offer dry powdered cell culture media and buffers which are manufactured using the highest quality ingredients. The powder is precisely blended in clean, controlled, state-of-the-art equipment to eliminate contaminating dust and to control temperature and humidity. MEM or Minimum Essential Medium was originally developed by Harry Eagle and from there modified in several ways (e.g. alpha modification) to suit many cell culture applications. It is used for cultivation of numerous suspension and adherent cells, including HeLa, BHK-21, 293, HEP-2, HT-1080, MCF-7, fibroblasts, and primary rat astrocytes.