There is such a tiny amount of alcohol in the
juice, maybe a few drops, if any... and I can't say anything about PG because I use mainly VG... but VG is a humectant, which is also used in hand lotions and moisturizers, so it has a tendency to draw moisture from the air (and your mouth!!).
But if you are really concerned about it, Virgin Vapors has a line of
juice that is alcohol-free:
Organically Flavored E-liquid | Virgin Vapor | Electronic Cigarette Organic e-Liquid | Electronic Cigarettes
Our ingredients are simple: nicotine, organic vegetable glycerin, distilled water and certified organic flavors. Some of our organic flavors come in an organic ethyl alcohol base. If you would prefer an alcohol-free e-liquid, please order from our Absolute line. On request, your e-liquid will also contain propylene glycol. Our e-liquids NEVER contain artificial colors, artificial flavors, artificial sweeteners or any other additives.
Hope that helps...
P.S. And make sure that you drink plenty of water... we are supposed to be drinking at least 8 glasses a day anyway...

LOL!!