Argentyn 23 is a professional grade of silver hydrosol. It represents the ultimate refinement and most significant breakthrough in colloidal technology, having consistently produced the smallest particles ever seen in colloidal silver products, with the most unique charge attributes (98% positively charged). Argentyn 23 does not use additives or stabilizers, nor does it contain salts or proteins (often used to keep silver in suspension, but which create silver compounds). It is pure, meaning it contains only 99.999% pure silver suspended in pharmaceutical-grade purified water. Ingredients Silver 23mcg per serving Other Ingredients: Pharmaceutical-grade purified water. Usage Adults: 10 sprays.Maintenance: Once daily.Immune Building: 3 Times daily.Long-Term Immune Support: 5 Times daily.Short-Term Immune Support: 7 Times daily. Size 2 oz