What is propylene glycol?

This is a guest post written by LadyStrick9, from Chesapeake, VA who often refers to herself as a “vapaholic”.

What is PG? According to Wikipedia, “Propylene Glycol Alginate, or PGA, is an additive used mainly as a thickening agent in certain types of food. It is made from the kelp plant or from certain kinds of algae, which is processed and transformed into a yellowish, grainy chemical powder. The powder is then added to foods that require thickening. Propylene Glycol Alginate has been used for many years as a food preservative. Many food manufacturing companies use it in the most common household food items.”

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