These are the two base ingredients of e-liquid or e-juice. If you’ve ever been to a concert, these are the same ingredients used in smoke machines. They both produce similar results, they create vapor. They are each somewhat different and you can expect a different type of vaping experience with each one, or when they’re combined. If you would like to read about scientific studies on each of these base ingredients, head over the medical and scientific studies section of the site. Both base ingredients are FDA approved.
Propylene Glycol (PG)
Propylene Glycol is a man made chemical. It has a variety of uses in industrial manufacturing, cosmetics and in the food production industry. I’m not a personal fan of 100% PG e-liquids. The reason being is that i find the throat hit too sharp and vapor production is too light for my personal taste. The majority of e-liquids manufactured in China use 100% PG or 100% VG. Most vapers will agree that a mix of both tends to give a more satisfying all round vape. The one advantage 100% pg liquids have over pure VG or other mix ratios is density levels. Because PG is a lighter in density it tends to flow more freely to any e-cig device. This reduces the risk of wicking issues, when you have wicking problems you will get dry hits which can produce a foul burnt taste. PG liquids produce a sharp throat hit but limited vapor compared to VG based juice.
Vegetable Glycerin (VG)
In contrast to propylene glycol, vegetable glycerin is not man made. It’s produced from organic matter which can be derived from animal fats or vegetable oil. It’s widely used in the cosmetic and food industry. There are a few noticeable differences when vaping VG. For starters it’s a lot sweeter to vape. 100% VG e-liquids produce very little throat hit, on the flip side they produce huge clouds of vapor. My sweet spot is an 80/20 PG/VG mix. I don’t particularly enjoy vaping juices that are 100% PG or VG based. I can’t say with any degree of certainty that this will apply to you however. That’s why I recommend trying out both pure bases and mixes to discover your own personal preference.
Our medical facts and studies section goes in to greater detail. The only major health concern for new users to be conscious about is the risk of an allergic reaction. Allergies are rare in general, but the the most common complaint is an allergy to PG based e-liquid. If you notice any adverse effects from vaping a PG base you should cease using it immediately. VG allergies are exceptionally rare, most people who have experienced issues vaping PG liquid have switched to VG and reported no further issues.