The Uses of PG and VG in the Vape Industry

In this post we are going to be talking about the two main ingredients in e-liquid, PG and VG. The differences between PG and VG, their uses and where PG and VG come from.

Propylene Glycol (PG):
PG is commonly used as the flavour carrier/throat hit and VG is for the clouds/smoothness. Generally speaking, 70%VG / 30%PG seems to be the favoured ratio for most as it gives the best balance between flavour, throat hit and clouds. Bare in mind that if your device is less powerful you may prefer a 50/50 ratio.

I tend to think of it like a cup of tea. PG/flavour is the tea bag and VG the water. The flavour needs time to steep into the VG in the same way you need to brew your tea and let it sit.

Vegetable Glycerine (VG):
VG, as well as being used in vaping, is a by-product of soap manufacturing and is used a lot in the cosmetics industry.

There are 4 main places Glycerine comes from:
Rapeseed derived
Vegetable derived (soy, coconut)
Palm oil derived
Animal derived

Lets discount animal derived as that’s not commonly used in vaping.
Often products are a mixture of several of the above, so it’s a good idea to ask your supplier what it’s made from before you buy it.

Palm oil derived Glycerine is commonly favoured in the USA and Malaysia over rapeseed derived VG. Unfortunately, palm oil derived VG is exasperating the issue of deforestation of the rainforests and is stopping those monkeys from having anything to swing on. MONKEYS NEED TO SWING! Did the jungle book teach us nothing?

Boss Shot LTD only sell the highest quality 100% Rapeseed derived VG as we do not condone deforestation. You can purchase yours here –

Zombie Studios created a short animated film that showcases the affects that humans are having on the planet and it’s creatures. A poignant reminder concerning the threat of animal extinction. It showcases the plight of various species in danger due to reckless human behaviour. 
Opening with birds, rhinos, seals and whales in their vibrant natural habitats, the film quickly darkens and deteriorates into a dystopian nightmare…

Propylene Glycol (PG)
PG is made by introducing water to Propylene Oxide, so as such, is synthetic by nature. Its used in everything from foods to pharmaceuticals. It’s used in baking to evenly spread flavours. It’s used in antifreeze when leakage may lead to contact with food products. It’s used in cosmetics to keep products from freezing or melting. It really has a million and one uses.
Its classed as a humectant which means it keeps things moist (giggity) by drawing moisture out of the air, which is one of the reasons it’s used so much in food manufacturing. Mmmmoist…

It’s used as the flavour carrier in e-liquid. Almost all flavour concentrates use PG as the carrier, often with a mixture of water or alcohol. There’s a common misconception that more PG = more flavour in e-liquid but actually I find less PG just means more steeping. 70/30 and 50/50 VG/PG ratios should have the same amount of flavour after their given steep times.
You can purchase yours here –

Propylene Glycol is actually a potent germicide and there are studies that show it to be a powerful deterrent against pneumonia and influenza amongst other respiratory diseases. Researchers found that one part of glycol in 2,000,000 parts of air would–within a few seconds–kill concentrations of air-suspended pneumococci, streptococci and other bacteria numbering millions to the cubic foot.

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