Double Wood Supplements Colloidal Silver Liquid 20 PPM - 4 Fl ozFeatures Pure Formula: Made with 99. 9% pure colloidal silver and distilled water, no additives or unnecessary ingredients. Convenient Dropper: Includes a 1 ml dropper for precise and easy dosing. Safe And Effective: Each serving provides 20 mcg of colloidal silver, well below the EPAs established safe daily oral limit of 350 mcg. Four Month Supply: Contains 120 servings of 20 PPM colloidal silver for long lasting value. Ingredients Check image