The world's first and only foliar delivery agent! If you want to deliver extra nutrition to your plants, via the leaves, you need PENETRATOR because as the saying goes - "Without PENETRATOR, it just doesn't get in!" PENETRATOR has been proven by the University of British Columbia to be the world's first and only foliar delivery agent. If you are using other so called "wetting" agents then you are doing just that, wetting your leaves and very little else. Without PENETRATOR, foliar sprays will not work as effectively - A University proven fact!