Earth's Bounty Colloidal Silver is all natural, and 99.99% pure. It is made using a unique electrosonic process that yields true colloidal particles that are more stable and in the desirable 1-9 nanometer range (.001 - 0.009 microns). Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. Product characteristics include: Nanopure water, elemental silver (10 ppm), 99.99% pure. (Please note: Description is informational only. Always read the product label before use and check with your health professional before using this product)