Hi Ian,
Those of us who have already been through what you are going through in terms 
of choosing which CS is the best will tell you the same, brew some at home with 
care and attention. 
The whole setup if done very simple with 3 nine volt batteries and a resister 
will cost you the same as one single bottle of commercial CS. And since it will 
have ionic and particulate elements will serve to provide you with both and you 
ca produce as much as you like then! And also care and share with those around 
you.

If you are able, you could change the setup for a 'fancy' current controlled 
one with one single ic with three pins that costs under 2 dollars

Or buy one of the excellent units some of our members offer.

Please do not be put off with making your own CS, most commercial stuff will 
only be at best as good as your own home made stuff ( if made well).
The tetra silver is one people had reported good results with. Other than that 
there's not much to differentiate the  others other than marketing and 
sometimes misrepresentation of their product.
There's very little difference in genuinely colloidal silver with ionic and 
some particulate matter. So there's no need to over analyse the situation.

Best of luck

Peace to all

Asif.




On 28 Jul 2012, at 03:09, Ian MacLeod <[email protected]> wrote:

> I've a question I hope someone can answer. One seller of nanosilver, "Purest 
> Colloids". Internet URL is "purestcolloids.com", says that theirs is a 
> better-than-most colloidal silver because their silver particles are smaller, 
> and there is almost no ionic silver in the solution. They call it 
> "mesosilver" because of the process used. They have all sorts of studies 
> available, plus the make other colloidal suspensions than just silver. 
> Anyway, some others insist that ionic silver is the part that has the 
> antibiotic     effect. THAT can be made at home, I know, but it's silver 
> dissolved in solution, it is NOT a colloidal suspension. So which one should 
> we buy? I'm looking at the added expense of buying one of each and using 
> both. ONE of them has to be wrong, but which one?
> 
> Thanks!
> 
> Ian 
> 
> 
>  
> On 7/27/2012 7:51 AM, [email protected] wrote:
>