Silverlab Ionic Colloidal Silver Liquid can be taken as a daily dietary supplement, and also as a tonic to help strengthen the immune system to fight infection, It may act as the first line of defense against colds and flu, Each spray contains billions of positively charged nano silver particles, which seek and eliminate harmful germs, SilverRepair LIQUIDTM is a 100% natural ingredient, is strong on germs, yet gentle on people, and can safely be used for extended periods.