99.99% pure Colloidal Silver at 10 ppm.  .  The Ancient Greeks, Egyptians and Romans used silver to support immune function.  Phoenicians stored water, wine and vinegar in silver bottles to prevent spoiling. Hippocrates, the “father of medicine,” wrote that silver had beneficial properties.   In the 1930s, Colloidal silver was a common choice for supporting a healthy immune system.  In the mid-1960s, NASA developed a lightweight generator to dispense silver ions into the drinking water aboard Apollo spacecraft to kill bacteria, and in 2015, they approved the use of a silver-based water purification system aboard the International Space Station.  Today, silver is experiencing a renaissance as consumers seek out more natural ways to support their health and well-being:  Allergen-Free,  Gluten Free, Non-GMO,  Vegan‡