While they've got a .co.uk website QHI actually ship from the U.S.A.

IAS won't ship most nootropics to the UK or EU, they note on the product pages on the online store "This product is not available for shipment to the UK & EU" and as a reason say in the FAQ:

"Q. Why are some products restricted to the European Union?

IAS operates an international selection of depots located within Great Britain and the USA. Due to the restrictive regulations surrounding the status of medicines and “unapproved products”, we carefully decide which products are shipped from which depot to ensure conformity to local laws etc.

However, the majority of our medicines are currently located with GB and due to EU legislation there are many regulations that make the area very unclear. To this end, to ensure compliance, we limit the sales of products to the EU as of nutritional status only, which is why we don't currently ship medicines and hormones to the EU."