FuGENE® 4K is the most advance, best-in-class, multicomponent transfection reagent for high efficiency, and low toxicity delivery of DNA into common and difficult-to-transfect eukaryotic cells. FuGENE® 4K enables researchers to obtain superior DNA transfection efficiencies across applications such as gene expression, protein production, and viral production. The simple, easy-to-use protocol with minimal optimization allows users to free up valuable lab time.