Propylene glycol (PG) Versus Vegetable glycerin (VG), Which one is better? : Canada Ecigs Company Blog
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Propylene glycol (PG) Versus Vegetable glycerin (VG), Which one is better?

by CanadaEcigs.ca on 10/25/13

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Propylene glycol (PG) Versus Vegetable glycerin (VG), Which one is better? written by: Roy warren Whether homemade or commercial, all eCig juices consist of a base-liquid, to which some flavors and sometimes even nicotine is added. There are 2 base-liquids available. These base liquids are commonly-known as or referred to as Vegatable glycerin (also abbreviated as VG) and Propylene glycol (also abbreviated as PG).

Propylene glycol (the PG) is the most popularly used or rather the most commonly-used base-liquid for making the Canadian made ejuices. It's flavorless/ odorless and it is clear. It mixes rather well with many other flavors, and it tends to burn rather cleanly on the atomizer. The Propylene glycol is considered safe for human use or consumption. It serves as solvent in some medial products, and its also used in perfumes, food stuffs, hand sanitizers and various other cosmetics. PG has various other uses too.


Vegetable-glycerin (the VG) is a water soluble-liquid which is also at times used in medicines, food stuffs and cosmetics. It's much more sweeter than the Propylene glycol, PG, and it serves as an alternative-choice to the P.G in the eCigs, or it also can be mixed in with the VG in various different mix ratios. Knowing the fact that you have a decision to make between these 2 base liquids, it is important for you to know the differences that lies between the 2 base liquids. It's especially important for you to know and understand the various different experiences which you're most likely going to experience when using these liquids.

An eCig juice which has only Propylene Glycol, PG, in it and has no vegetable glycerin is most likely going to present or give out the added flavors more. Propylene glycol has no odor, meaning it has no flavor of its own.This means that all that you will taste on the juice are the added flavors or odors in your eCig juice. It's also sometimes used to in diluting the concentration of the nicotine that you're vaporizing. It is used to vaporize down the nicotine to the desired strength one is looking for.

Both the Propylene glycol, the PG, and the Vegetable glycerin, the V.G, are viscous-liquids, but the PG is much thinner than the VG. Some atomizers will work much better with a thinner liquid than a thicker liquid. The thicker V.G may not work well on some atomizers, and may end up fouling the atomizer much faster or much sooner than anticipated. If you're using a 100 percent V.G, fro example, because you have a Propylene glycol allergy, you may find out that your atomizer doesn't work well or does not work as expected. If so, you can try to use dripping in such a situation. Dripping will give a desired amount of flavor and vapour. If the VG's liquid thickness turns out to be problem for the atomizer, you can thin the VG's thickness by using alcohol or water.

V.G is noticeably much sweeter than the P.G. Many people normally tend to like this or dislike it. This is even more-noticeable when you are vaporizing large amounts of unflavored juices. This is because the juices sweetness which comes in many different flavors will tend to over-power the VG's sweetness. There is a much more thicker and a much more noticeable vapour with VG and all the vapour produced tends to linger much longer.

However, what may vaporize rather well on one eCig atomizer, will or may not vaporize as well on another eCig atomizer. This basically means that you may find a good-mix of the flavor and if the amount of vapour produced, but you will still need to do more experiments so as to get the desired mix that works on your atomizer.

VG, PG Side Effects and Risk of Allergies

When using PG some people may experience or suffer some side effects. Some of these side effects can include; a dryness in your mouth and throat which is commonly known or referred to as cotton-mouth, (this may be caused if you use your atomizer a lot more or longer and you do not drink enough), PG can also cause stomach upsets leading to stomach-pains and nausea. If a person is allergic to Propylene glycol, PG , of which is rare, the side effects can include hives, skin rash and dry skin which can make one feel rather uncomfortable. If you stop using the eCig juices with P.G in them, all these symptoms will disappear, and VG juice may be and is, the solution for you.

Vegetable Glycerin VG, does not have allergy issues or side effects that P.G has, and the cotton-mouth tends to be much less severe. However there are some people who complain that the VG is a little heavier on their lungs. VG allergies are possible but are very rare. The allergies includes symptoms such as hives and vomiting.

Mixing the Two Liquids

If you prefer PG's flavor but you want a large quantity of vapour or you want a thicker-liquid, then it is possible for you to get the best that's in both juices. PG and VG can be mixed-in different varying ratios which enables you to find and get the perfect and desired effect. These mix ratios can be achieved in D.I.Y juices for eCigs, or can also be ordered from the manufacturers of the commercial juice.

Since the P.G works well and is usually less likely to foul or spoil the atomizer, it's common to start the mix with this and then add a little of the VG to the mix so as to increase the juice's sweetness, the thickness (if desired) and also the amount of vapour being produced. An 80 by 20 ratio of PG to VG mix is commonly used, as also is a 50 by 50 PG to VG ratio.

If there are no side effects or you do not have any-allergies or such other sensitivities, it means that you can use any of the liquids.The mix of the juices you want comes down to your personal preference. However, a little more experimenting and testing will help you find out the best and perfect mix you like.