E-Cig Education

Answers to Frequently Asked Questions
If you have another, please ask!

What is E-Liquid?

E-Liquid is the term coined for the liquid that is in e-cigarettes.  E-Liquid is heated to produce vapor that is inhaled just as one would when smoking a cigarette.

What’s in E-Liquid?

E-Liquid is usually comprised of Propylene Glycol (PG), Vegetable Glycerin (VG) , Liquid Nicotine, and natural and artificial food flavorings.  Different E-Liquids contain different percentages of PG and VG, and can be made from solely one or the other.  It can also be made with varying levels of  liquid nicotine from none at all, as high as 24 mg/ml.  

What is Propylene Glycol?

Propylene Glycol (PG) is generally recognized as safe (GRAS) by the FDA.  It is a clear, colorless, tasteless liquid. It has been used for 50+ years in an endless number of industries in an endless number of ways.

Some examples:

  • Food products as a preservative (helps maintain moisture).
  • Cosmetics and Personal Care Products
  • Pharmaceuticals (topical, oral, inhaled, and injected)

PG is the base for most E-Liquids, as it carries flavors well and produces a sensation often referred to as “throat hit” that is similar to the feel of smoking a cigarette.

What is Vegetable Glycerin?

Vegetable Glycerin (VG) is a clear, odorless liquid derived from plant oils.  It is used in many of the same ways as Propylene Glycol in food products, personal care products and some pharmaceuticals.  It has a slightly sweet taste and can be used as a substitute for sugar in foods.

It is thicker than PG, and therefore when used in E-Liquid produces more vapor but doesn’t carry flavors as well and doesn’t produce as much “throat hit” as a liquid containing mostly PG.   Most E-Liquid contains some percentage of both PG and VG.  The exact mix is a personal preference.