OK, I'm kinda new to all this, but, has any of this stuff (vapor) been tested in an independant lab? What type of extensive research has been done with this stuff? It's a fairly new concept. With that said, who is overseeing the manufacturing of the "juices" we're inhaling? Where do the suppliers get their nicotine? VG? PG? Other ingrediants? Does it come from China. I know some does, and it wouldn't be the first time China has sold cheap, dangerous products, like the toys with lead paint. I'm not advocating govt. regulation necessarily. In fact, I'm opposed to big govt in almost all ways, but, they have a semi-valid argument, and I'd be lying if I said I wasn't skeptical about the stuff I've been vaping. Obviously I don't care that much because I was smoking 2 packs a day, but, I KNOW that's gonna kill me. Just saying that it wouldn't suprise me, and since there's (to my little knowledge) no extensive, long-term studies on the effects of vaping, there's ZERO regulation on the juice. Literally ANYONE can mix this crap up like .... in a tub and sell it. No health inspections, quality control, dosage verification, etc. I know this is going to be a VERY unpopular post, but, I'm just saying I get it, and won't be suprised at all.