PG And VG – What Do I Need To Know?

Posted by Vicken Seraydarian on

PG And VG – What Do I Need To Know?

If you’re switching to vaping from smoking, you’ll have heard the terms PG and VG in relation to e-juice but you might not be sure what they mean. However, knowing the difference between the two and how they can affect your vaping experience can help you to maximize your vaping pleasure. So, let’s look a little more closely at what these two ingredients are.

What Is PG?

PG is short for polypropylene glycol which is produced as a byproduct of petroleum. Colorless and odorless, it provides the throat hit that ex-smokers enjoy when vaping and it also helps to carry more flavor which is why it’s commonly used in high ratios in e-liquids. As well as being used in e-juice, PG is found in lots of other commonly found items like toothpaste, nicotine inhalers, pet food and beauty products.

What Is VG?

VG or vegetable glycerine is produced naturally from vegetable oil. Its purpose in e-juice is to give the vapor a thick sensation and when used in a high ratio it produces impressive clouds. With its sweeter taste and thicker consistency than PG it produces a smoother hit and is ideal for sub-ohm vaping. Not only is VG used in e-liquids, it is used in personal care, medical and food products such as sweeteners, beauty products, pet foods and baked goods.

Are VG And PG Safe To Vape?

One of the biggest questions about VG and PG asked by new vapers is whether or not they are safe to inhale. The media is full of stories about vaping and critics are often suggesting that e-juice could be harmful to health, so what is the truth?

VG has been officially recognized as being safe by the FDA and in fact, is regarded as an especially benign substance. It has low toxicity if consumed and is very unlikely to irritate eyes or skin. While there are currently limited numbers of studies into whether VG is safe to inhale, the fact it is widely used in foods and medicine products suggests that humans can use it safely.

So, what about PG? Studies have proven that PG can be orally ingested safely, and, just like VG, it has been recognized to be safe by the FDA when used in foods. While there are limited studies into the safety of inhaled PG, one long term study carried on in the 1940s showed that there was no harm at all in inhaling PG. One of the main negative stories circulating in the press about PG is that it is an ingredient used in antifreeze products, however the toxic ingredient used in antifreeze is ethylene glycol rather than propylene glycol, which tends to be used for food-processing machinery and is considered to be “pet safe” when sold in stores.


Is There Anything To Bear In Mind When Vaping PG And VG E-Juices?

While both PG and VG e-liquids are considered to be safe to inhale, bear in mind that high levels of PG in your e-juice can irritate the throat and a small minority of people experience allergic reactions like rashes from vaping a high PG e-liquid. On the other hand, there is an exceptionally low risk of allergic reactions to VG, so if you have a bad reaction to PG e-juices you can always switch to 100% VG products.

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