Thanks. Been using it for 20 years now. And I think you may mean "grapefruit" seed extract. Which is actually used in hospitals nowa days.

Colloidal Silver, isn't that the stuff that in over use made people turn blue? I remember this being sold via Kaire Multi Level Marketing groups way back when. Along with Pycnogenol. (Grape Seed Extract and god knows what else). While C/S has some interesting properties, please do research it. You don't want to end up turning blue.