I would only carry a small bottle of ejuice with me over the border and I would make sure that it was labelled etc showing what it is. I wouldn't mention it if you don't get asked. They'll surely ask you about cigarettes and booze. I am sure they won't even mention it. I am just 5 mins across the border and MBV does ship to Canada and I've ordered from him and had it shipped here although I could drive the 30 minutes and buy it myself.

When you get here, shoot me a PM and I can hook you up with a local guy right by me who does amazing juices to tide you over till you leave.

I have heard of seizures of juice from MBV here in Vancouver but I was ok getting it shipped in and it was even labelled as ejuice with the flavours etc on it and still cleared through customs. go figure?