There's also the fact that Colloidal silver doesn't actually DO anything beneficial.
Then there's the list of Colloidal Silver's side effects.
* Argyria — an irreversible blue-gray discoloration of your skin, nails and gums
* Seizures and other neurological problems
* Kidney damage
* Skin irritation
* Drug interactions with penicillamine, quinolones, tetracycline and thyroxine medications
But hey, if one WANTS to be able to be a member of the Blue Man Group with minimal makeup, you can always make it at home.