Hey guys I was wondering what the shelf life of an UNOPENED SEALED 500ml. of 100mg. Nicotine is if I don't leave it in a freezer, but put it in a dark, cool place away from light? I wanted to purchase one of these from Wizard Labs in preparation for a potential "doomsday" on nicotine bans by the government. Their site says that it has a shelf life of 12-18 months... is it possible that because it is unopened and stored properly, it could last at least up to a few years?