Jason,
Thank you for your reply with so much information.  My boyfriend does intend 
to take silver orally first.  I just wondered why the MSP seemed to be 
considered different from all the rest.
>From your response, I get that it's due to the high concentration.  I have 
seen some colloidal silver in healthfood stores that are 400 to 500 ppm 
concentration.
So would they be considered unsafe also?

Oh yes, what exactly is the  herxheimer reaction?  Is that due to too many 
pathogens dying off at once?  Or something else?

It's hard to know which product would be best to start with.

>From all of my reading, I'm thinking about Meso silver which claims to be 80 
percent colloidal and 20 percent ionic.

Summer