Just had a quick look on the QHI website & while they don't state explicity that they ship from outside the UK this would seem to be implied by the following statement:

"The solicitor for Quality Health, Inc. has had the following UK regulations clarified by the Medicines Control Agency in connection with those UK based citizens interested in the information posted at this web site:

The Medicines Control Agency does confirm that UK citizens or their doctors are allowed to import medications intended for personal use.

The Medicines Control Agency considers the sending out of brochures or order forms by Quality Health, Inc. that deal with medications classed as "prescription only medicines" in the UK, to be in breach of current advertising / marketing laws.

While Quality Health, Inc. does not like the fact that it will no longer be able to post UK citizens its order forms or brochures, it does feel compelled to abide by the current law until such time that it may be changed."

That said I do see they have a UK postal address.