Mate I'm in Australia.....find a domestic source, there's quite a few! I wouldn't risk trying to ship something past customs. They're the strictest in the world.
Mate I have ordered a few things from Ag-guys and have had no problem getting them through, they tend to know what their doing to get them through customs Clen was one of the bottles I got, it was a free gift!
But from what I've been reading shit sounds nasty...good luck