For the first time, achieve superior protein yields using transient transfection and gene expression. FectoPRO? Transfection reagent is specifically designed for enhanced Transient Gene Expression (TGE) in suspension CHO and HEK-293 cells in various serum-free media, using low DNA amount (< 1 μg/ml of cell culture). FectoPRO?-mediated transfection process is easily scalable from a few ml to several liters of cell culture, ensuring robust reproducible protein production. Increased productivity and low DNA amount requirement make FectoPRO? a cost-effective solution for bioproduction processes.