Propylene glycol is used in e-cigs for what reason?
We are accustomed to inhaling chemicals that we are unaware of as smokers. Many smokers are surprised to learn that a single cigarette contains over 4000 chemicals, including arsenic, cyanide, and other dangerous substances. After all, one of the first things a smoker learns is to disregard the warnings on the box about lung health or the risk of lung disease, just one of the many risks of smoking. One of the best aspects of electronic cigarettes is that you are only inhaling four ingredients, one of which is Propylene Glycol. You probably don't know what Propylene Glycol is or what it does to you unless you have a chemistry degree. Propylene Glycol is used in electronic cigarettes for various reasons, including thickening, acting as a solvent to keep the nicotine in place, and being odourless. The first is self-evident; it is used in conjunction with vegetable glycerin (VG), the other main ingredient in electronic cigarettes, as a thickening agent and keeps the flavouring a...