Hi Avid,
Hopefully Swanny will respond soon.
I got mine from:
http://www.colloidalsilveronline.co.uk/
It came quickly and was packed securely with a free sample of another product. I can't say whether it has worked or not because I've been taking it as a preventative and haven't been taking it consistently (couple of teaspoons a week), but just thought I'd let you know of another place to buy. I got it from there because on their technical data, they specify which are suitable for vegetarians, vegans or both.
Kind regards.