Nutricost Colloidal Silver 4oz 30PPM - Cobalt Blue Glass Bottles, Bio-Active Colloidal Silver

4 OZ Of Bioactive Colloidal Silver Per Bottle Convenient Dropper For Easy Servings Perfect Concentration & Particle Size Of 30PPM Blue Cobalt Glass Bottles To Protect Stability For Superior UV Light Filtering Uses Glass Bottles To Protect Stability & Quality: Plastic Bottles May Leach Impurities Into Colloidal Silver