What is Propylene Glycol and its Role in Vaping

A comprehensive guide to Propylene Gycol and its role in vaping. Shows exactly what it does, its taste, and how to determine which e-liquids contain this in them.
What is Propylene Glycol and its Role in Vaping

So by now most of us vapors are aware that we have two main ingredients in all of our e-liquids: Propylene Glycol and Vegetable Glycerin. But what is Propylene Glycol? In this article, we will focus on Propylene Glycol (PG) and what it does for your vaping device. If you wish to learn more about Vegetable Glycerin (VG), you can click this link, and you’ll be directed to that page. Or if you are interested in a comparison of the two click here.

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What is Propylene Glycol?

So let’s take a look at what is propylene glycol. It is a tasteless, odorless liquid that serves as a base in many e-liquid products. You can take a look at our products here which mostly contain a 50% VG/PG ratio. Like VG it is a clear liquid that helps the wick in your vape quickly absorb the liquid and provide you with the hit. This hit is popular in many seasoned vapers who wish to feel the sensation of smoking the liquid. Now where PG differentiates from VG is in the consistency. It is runnier which allows for faster absorption by the wick. PG also has a stronger hit which is known to dry out vapors throats quicker.

Besides absorption, the benefit to having more PG based liquids is the fact that there is less build up in your vaping device. Since it is a thinner liquid, it makes cleaning the equipment significantly easier. Overall people like using PG when they are concerned about having a strong throat hit and is the more popular choice among vapors.

The downside of using Propylene Glycol comes when we take a look at the cloud production. Larger clouds come from VG. But there are drawbacks that we can see here in the comparison blog (VG vs PG). Another downside of using a PG based e-liquid is a slight allergy risk. People tend to be more allergic to PG than VG (if they are allergic at all). These reactions range from mild irritation such as a small itchy feeling in the throat to more severe irritations occurring. Stop vaping if any of these symptoms occur. Consider using a VG based liquid if you wish to continue.

What does it do?

As mentioned above PG aids in the absorption of the e-liquid into the wick, since it is a very thin liquid it offers the users a fast absorption time. Besides providing that faster absorption time, it gives you a better hit, which stimulates the sensation of smoking which some users find more enjoyable.

How do I know which liquids contain this?

To know which liquids contain Propylene Glycol or Vegetable Glycerin for that matter a simple examination of the bottle should offer the solution. Most products contain a 50/50 mixture of each of the components but some offer a higher PG or VG base depending on what exactly you’re looking for in the liquid. Please take a look here at the e-liquids we offer.

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How does it taste?

Propylene Glycol is a tasteless substance.

Is it harmful?

Vaping PG has no significant side effects if any. It is considered a “safe” additive by the FDA. As mentioned above some people do find that they have a minor allergy in which they feel itchy or sensitivity in some areas, if this occurs the vaping should be stopped immediately. You could consult a physician or switch over to a purely VG e-liquid where fewer users have reported allergies. Click here to learn more about the risks of vaping.


Q: Is PG a harmful chemical?

A: No, Propylene Glycol is a liquid that is marked as “safe” by the FDA to be used in food?

Q: What does Propylene Glycol do?

A: PG is quickly absorbed into the wick and serves as a base in vaping products.

Q: What is Vegetable Glycerin (VG)?

A: Vegetable Glycerin (VG) is Propylene Glycol’s cousin which also serves as a base, the difference is this liquid is known for the massive amounts of smoke created.


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