Way to Life Colloidal Silver 25mg 500mlMade to the highest purity and standard, Rochways Colloidal Silver contains electrically charged fine silver ions, suspended in filtered water to create a bacteriostatic agent in a class all its own. With 22 parts per million, no stabilisers, artificial ingredients, colours, flavours or preservatives mixed in, you can rely on the high quality of this premium colloidal silver. Add 10ml to every litre of water and allow to stand for approximately 20