EndoFectin™ Expi293 is a powerful transfection reagent ideally suited for transfection of the suspension cell line Expi293F. Expi293F is the most commonly used suspension HEK293 cell line for transient expression to achieve high cell density. EndoFectin™ Expi293 provides greater transfection efficiency of Expi293 cells than Expifectamine 293 over a range of cell densities. The EndoFectin™ Expi293 kits are designed for high level of secreted (EF017 and EF018) and intracelluar (EF019 and EF020) protein expression and isolation from Expi293F cells. The kits include EndoFectin™ Expi293 transfection reagent, as well as proprietary solutions engineered to enhance protein production.