Renal Epithelial Cell Growth Kit contains components that when added to Renal Epithelial Cell Basal Medium (ATCC PCS-400-030) create a complete ATCC Primary Cell Solutions culture environment for renal epithelial cells derived from a normal human kidney (eg, Primary Renal Proximal Tubule Epithelial Cells, Normal, Human, ATCC PCS-400-010; Primary Renal Cortical Epithelial Cells, Normal, Human, ATCC PCS-400-011; Primary Renal Mixed Epithelial Cells, Normal, Human, ATCC PCS-400-012). The low serum (0.5% FBS) medium formulation is designed to support normal renal cell morphology as well as promote rapid growth and proliferation. No feeder layers, extracellular matrix proteins, or other substrates are required.