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Resources PG vs VG - All Things You Should Know about e-Liqiuds
What is e-Liquid / e-Juice?

The eliquid – also named as ejuice is the liquid used in electronic cigarette for producing vapor and simulating smoking. It’s normally composed of up to 4 ingredients:

  • PG (Propylene glycol)
  • VG (Vegetable glycerin)
  • Flavor (Hundreds of different kinds of food flavors)

Also you can add some distilled water to dilute the e-Liquid if it’s too thick, such as 100% VG based e-Liquid.

PG vs VG

The PG (Propylene glycol) and VG (Vegetable Glycerin) are the two primary base ingredients of eliquid. They are all FDA approved and are equally safe.

  • PG is a clear, colorless liquid which usually been used as a flavoring carrier in food products, The main applications of Vegetable Glycerin are cosmetics products, food production, and e-juice.
  • VG is a natural organic liquid made from vegetable oil, it’s sweet and thick, more viscous than PG. The main applications of Vegetable Glycerin are cosmetics products, food production, and e-juice.
  • PG is thinner and VG is thicker.

E-liquid can be made up of 100% PG base, 100% VG base or a combination of both. But which one is better? Here are the different categories:

Throat Hit: PG based eliquid provides a stronger throat hit and more pure flavor taste than the VG based ones.

Vapor Production: VG based leiquid creates more vapor than the PG based ones, and it has a slightly sweet aftertaste.

Storage Time: The PG based eliquid has longer storage time than the VG based ones cos its powerful moisturizing properties.

Temperature Resistance: VG based eliquid has higher temperature resistance than the PG based one.

In conclusion, Higher Power is needed to produce vapor with VG based e-liquid. But it may cause a burnt taste using high power with PG based e-liquid.

Atomizer Friendliness:

  • PG is thinner and has low density, it’s absorbed much faster by wick materials, and less likely to gunk up your wicks and heating elements of the atomizers, meaning less cleaning required for the atomizers/ That will meet many popular atomizers/ clearomizers in the market, such as CE4, vivi nova and protank.
  • VG is thicker and has high density, it can produce thicker clouds, but it’s also more likely to build up on your wicks, heating elements and other vaping components, meaning more cleaning and maintenance will be required. So it’s best to use with the rebuildable atomizers, such as Trident, Omega, etc.

Now most eliquid companies mix both PG and VG together to retain the advantages of the 2 ingredients. PG deliver you better flavor taste, stronger throat hit, and VG produce more vapors. The typical ratio of the PG and VG is 50/50, 60/40 and 70/30.

About the Flavor

The flavor concentrate is another important ingredient of eliquid which will provide you the taste you want.

There are about 5% to 20% flavors added in most eliquid. EXCEPTION some Tobacco Flavors you only need 1% to 3%.

if 10ml of eliquid = 100%, then there are:
95%-80% of PG or VG or PG/VG Mixture
5% – 20% flavor concentrate.

So if you want to mix your own eliquid, such as: 10ml, 18mg, 50%PG / 50%VG, 10% Apple Flavor, you need to prepare:

  1. 1mL of apple flavor
  2. 4.5mL PG, 4.5mL VG

Put them together in a bottle and shake for 15 seconds, and your eliquid is ready for testing.

Which E-liquid is Best for You?

There is no one can tell you which eliquid is exactly the best for you. the only way is to test by yourself. The 50/50, 60/40 or 70/30 mixtures is a good choice to start If you don’t know how to choose.

If you want more pure flavor tasting, just add some PG; if you want more vapor, just add some VG. Give it some time and you will find out the best proportions for you.

In my opinion, the 70%PG / 30%VG working great with most of the clearomizers in the market, and the 20%PG/80%VG is great for those RBAs.

PLUS 6: PH Level of E-liquids

Just like other liquid, you should choose a good balance of PH level to get the best tastes when you buy or mix your own eliquid. Use a pH test strip to test it before you vape it.

It is advised that e-liquid pH levels should be between 6-8 for the ultimate taste. In most cases, the PH level of eliquid will be on the side of alkaline. Because the ingredients of the eliquid, such as PG / VG are all alkalescent, even the flavor concentrate. So you can use some acidic juice or flavor concentrate, such as Lemon juice or Orange juice to counteract it.

Don’t forget to test the PH level after you added those acidic juice into your eliquid. Enjoy vaping and vaping healthily.