PEI Transfection Reagents

About

Polyethylenimine (PEI) transfection reagents are trusted tools for efficient gene delivery and protein expression across a wide range of cell types. Polysciences offers premium PEI transfection products designed for reproducible performance in research, bioprocessing, and viral vector production workflows. Whether you're scaling up for manufacturing or optimizing transfection efficiency in the lab, our PEI reagents provide reliable results batch after batch. Need guidance selecting the right reagent? Our technical team is here to help.