The B-27 Plus Neuronal Culture System is a next-generation media system that provides the highest rate of in vitro survival of primary rodent and human stem cell-derived neurons. Comprised of B-27 Plus Supplement (50X) and Neurobasal Plus Medium, this system is an evolution of the most cited neuronal cell culture products, B-27 Supplement and Neurobasal Medium. It features an optimized formulation, upgraded manufacturing process, and more stringent quality control of raw materials and final product. These improvements enable the highest neuronal cell survival, improved electrophysiological activity, and enhanced functional maturity versus other neuronal cell culture media systems.