At my doctors office they had, ARGETYN 23 which is Colloidal Silver , that my doctor considered the best. I thought Colloidal Silver is what they spray in babies eyes when there born to protect their eyes from the bad guys .
Anyhow, my doctor went on and on, about how great it was and told me that some pharma co. wanted to buy Argentyn 23 That did not happen I'm so happy that they did not sell out to them. You can just buy at the store.