Definition..
Argyria is a rare skin condition that can happen if silver builds up in your body over a long time. It can turn your skin, eyes, internal organs, nails, and gums ablue-gray color, especially in areas of your body exposed to sunlight. That change in your skin color is permanent.
Comment..
If the Nano Silver gets excreted from the body, high dose long term use could turn you temporarily blue, but will eventually go away.
@Eladar That you continue to bet on a dead horse. Copper is much better and longer lasting an antiviral antibacterial but you refuse even to acknowledge that fact.
So keep on supporting your dead horse. Just proves you are a deadbeat troll.