Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Cloning & Expression

Request a Free Transfection Reagent Sample


US Customers Only

Please complete the form below (US customers only) to receive your choice of transfection reagent in a free sample size (100 µL).  Try our transfection reagent with your cells and see how switching to Sigma products can give you the same good transfection efficiency you want, at the fair price you need.

Also check out the Optimization Protocol so you can get the best efficiency possible and the Transfection Reagent Selection Guide to help guide your product selection.