What is the stability of transfection reagents?
Invitrogen’s transfection reagents are shipped on wet ice and should be stored at 4 °C. Invitrogen guarantees the performance of the product, if stored and handled properly, for six months following purchase. We do not recommend freezing transfection reagents as this usually decreases transfection performance. All tubes are labeled with an expiration date that is two years after date of manufacture.
