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Transfection Reagents

TransIT® Transfection Reagents are designed, tested and manufactured in Madison, WI. We support multiple transfection methods with a different reagent for nearly any application. Our reagents are ideal for delivering multiple types of nucleic acids including: DNA, siRNA, miRNA, mRNA, viral RNA, CRISPR/Cas9 components, and oligonucleotides to eukaryotic cells. All our reagents are made by our team of transfection experts to provide high efficiency delivery, exhibit low cellular toxicity, and ensure the best results for your experiments.

Our transfection products provide solutions for hard-to-transfect and common cell types, promoting effective workflow and consistent experimental outcomes in a number of applications. Whether there is a need for high functional virus titers, efficient knockdown of target genes, or effective, low toxicity solutions, our delivery systems for molecular and cell biology applications give researchers unprecedented genome control at their fingertips.

Check out our guide: What is Transfection?

Need help finding the best reagent for your experiment? Search Reagent Agent®

Still need more information? We suggest "Mammalian cell transfection: the present and the future" from the NIH, and Wikipedia.




Enter or select a cell type/cell source followed by a nucleic acid from the drop-down menus below.