The EZ PREP Peripheral Blood Mononuclear Cell isolation kit is designed to efficiently isolate highly purified peripheral blood mononuclear cells (PBMCs) from fresh whole blood products by density gradient centrifugation. The EZ PREP tube design is intended to provide visibility of the target population, allowing users to maximize the recovery of mononuclear cells. As a result, PBMCs are immediately available for downstream applications such as flow cytometry, culture, and/or DNA/RNA isolation.