Ionic Colloidal Silver 40 ppm High purity colloidal silver solution with a high percentage of active ions. The purity and concentration of the product have been tested and confirmed by independent laboratories. Pharmaceutical grade colloidal silver in liquid form. Basic raw material. Ingredients: water colloidal silver (nano) Ultra-pure, multi-purified and activated water. Ultra-pure silver with a purity of 99.99% (96% ionic, 4% colloidal), high concentration 40 ppm (40 mg/L). The purity and concentration of the product have been tested and confirmed by independent laboratories. Storage: To maintain the charged state of the solution for a long time, the product should be kept away from sunlight and electromagnetic fields (refrigerators, televisions, microwave ovens, etc.). Close the packaging tightly and store in a cool, dry place, outside the refrigerator! The contents should not come into contact with metal objects. Keep out of the reach of small children. Packaging: 250 ml of silver solution bottled in a brown glass bottle.