About this item 99 9% Pure Colloidal Silver and Distilled Water; Double Wood only uses pure Colloidal Silver and Distilled Water, no other ingredients Dropper for Convenient Use; Each bottle contains a 1ml dropped for convenient usage and dosing Safe Dose and Glass Bottle; The EPA has established a safe daily oral dose for colloidal silver of 350mcg, far above our daily recommended dose of 20mcg 4 Month Supply; Each bottle contains 120 servings of 20 PPM Colloidal Silver Liquid Drops Manufactured in the USA, Gluten Free, Non Gmo; DoubleWood Supplement's Colloidal Silver Drops are Manufactured in the USA, Gluten Free and Non Gmo