I just got a pm from someone re the way ti get SN for Ireland. I'm sorry however you are, I can't get the message up now to reply but I can't find it
Click on the three lines on the left of your screen.
Then choose "chat".
Then look at the right side of your screen and click on "private conversations".
The message is probably there if you don't see it in your notifications anymore.
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Re SN in the UK
A news article from Canada explained in August that due to increased suicides with SN the UK has now declared SN as "reportable substance". That makes it much more difficult to obtain for private persons. It also means that it is harder to get through mail.
While some suppliers do offer shipping to the UK/Ireland, check directly with them if and how they declare the contents of the package. There is no guarantee if it makes it through customs.