I've found the opposite to be the case.
Although 99% SN is tricky to acquire in the U.K.,there are sources. It just takes a while to be delivered - weeks if not months.
If you're in the U.S. it's a breeze to purchase one of the best out there.
Meto,on the other hand is proving to be a nightmare to get hold of,for me.
Are you in the U.S?
If you're in the U.K.,please PM me a number for whatever pharmacy you were able to just phone and order.
That sounds like The American Dream to me,as in,I can imagine being able to do that over there.