What is Propylene Glycol?

Propylene glycol is a common organic compound which is recognized as safe by the US FED (United States Food and Drug Administration.

Propylene glycol is used in the coloring of food, flavoring foods, and as an additive to keep things moist, including medicines and cosmetics.

Propylene glycol is also used in machines that simulate smoke, and in the electronic cigarettes,  propylene glycol functions to provide the vapor mist that looks like smoke and is used to suspend flavor.

Simply put, Propylene glycol is what allows you to get the taste and the nicotine of “smoke” without actuall smoking.