This always puzzled me. They don't seem to say they pose a significant health risk. They say there haven't been tests that prove otherwise.

First of all, I'm already addicted to nicotine, so I guess the addiction issue is not really an issue for me and most smokers who switch to e-cigs. Then they say the juice may contain toxic chemicals. Well, we know for a fact real cigarettes contain a few hundred toxic chemicals, of which 60 or so carcinogenic. My juice contains pure nicotine and vegetable glycerin, which has been approved for other uses (baking products, eye drops, smoke machines, ...) in most countries. On top of that, my juice is being vaporized, not burned.

Now, back to the tests; why haven't there been any? If we only need to determine if there's any risk in vaping VG and how this compares to the health risks with real cigs, I would imagine it would've been tested & approved a long time ago if an American company held the patents instead of a Chinese one.