Difference Between PG and VG Ejuice
E-juice is made with a mixture of Propylene Glycol (PG), Vegetable Glycerin (VG), Nicotine and Flavoring. Sometimes, water or sweetener will be added too. The amount of PG to VG will vary by brand. We’ll answer common questions like “How do PG and VG affect to vaping?”, “Is it safe?” and “What are the side effects?”.
Vegetable Glycerin is a lot thicker than Propylene Glycol. The consistency is like that of cooking oil, while the Propylene Glycol is thinner like water. The PG juice just flows right through, while it’s a little bit of a struggle for VG. E-juice with more PG carries the flavor a lot better and delivers a better throat hit. Since VG is denser, e-juice with more VG will generate more vapor.
Here’s a comparison between 100% VG e-juice and 100% PG e-juice:
Due to the thickness of Vegetable Glycerin, the clearomizers and cartomizers will have a harder time wicking it. It can also cause build-up around the coil, which clogs the atomizer. Increasing the nicotine level will also increase the throat hit, while the flavor will be more distinct with less nicotine.
Overall, it comes down to the differences that VG generates more flavor, while PG has more flavor and has greater throat hit. Remember, VG is for vapor and PG is for flavor and for throat hit. You can also get 50PG/50VG e-juice to balance these.
Is E-Juice Safe?
VG and PG are used in food, medical and pharmaceutical products. Asthma inhalers actually use PG as well. Propylene Glycol is generally recognized as safe by the FDA. VG is organic . It is the sugar substitute used to sweeten food. Some assume that PG is harmful because it’s used in anti-freeze, but they don’t have the full story. The fact is, it’s used as a safer alternative for Ethylyn Glycol to make non-toxic anti-freeze. Just because an ingredient is used in an anti-freeze doesn’t make it harmful. For example, water is also in anti-freeze, but that doesn’t make it harmful.
Allergies and Side Effects
The chances of being allergic to PG are low, and rare for VG. Chances are, you would already know if you are allergic, since a lot of consumables are made with these ingredients. Allergy symptoms of PG include eczema, throat irritations and nausea. Switching to 100% VG e-juice should resolve these symptoms. Side effects for PG and VG include dry mouth, sore throat and increased thirst, which all can be cured by drinking water. The symptoms are usually just seen when you have just started vaping. It can last from a few days to a week, or until the body adapts to e-juice. Remember, not everybody will experience these side effects. Sometimes, switching from tobacco cigarettes to electronic cigarettes can be confused with e-juice side effects, but are actually withdrawal symptoms from quitting cigarettes.