Interesting, sounds like a potential loophole. The juice makers could just sell the vape juice without any nicotine, which can be added later, by the consumer,

Interesting, sounds like a potential loophole. The juice makers could just sell the vape juice without any nicotine, which can be added later, by the consumer, or at your favorite shop I'm sure. When I used to vape, the shopkeepers would sometimes do that, if they were out of a flavor at my nicotine level.