Colloidal Silver is a dietary supplement or food additive with over 30 ppm (parts per million) of the 99% Pure Colloidal Silver liquid spray solution. May be used to support a healthy functioning immune system and improve overall defenses. This product is produced using a proprietary technology process to create the highest quality solution for maximum effectiveness. This Colloidal Silver is based in distilled water in a fast-absorbing liquid formula. It is Super-Oxygenated pure Colloidal Silver with no added Colors, Additives, or Stabilizers. Thank you for shopping with Biogenic Foods and we ensure that you will be completely satisfied with this product and all other nutritional items we produce and promote for healthy living!