Now, if you’ve started vaping but are still a beginner, you’ll doubtless have already heard of ‘PG’ and ‘VG’. Respectively, they’re short for propylene glycol and vegetable glycerin; the pair of ingredients that make up the chemically blended ‘base’ of an e-liquid.
Don’t doubt it, the presence of both is crucial in a quality vape juice; yet, their consistencies in different e-juices tend to differ, often reflecting how e-juices, themselves, differ in what they offer a vaper. In other words, one e-liquid will contain more PG than VG because it gives the liquid a specific effect; another vape liquid with contain more PG than VG because it gives the liquid a different (perhaps opposite) effect.
Propylene glycol (PG)
PG is essentially derived from petroleum and crops up, commonly, as a flavouring agent in various foods and medications; naturally then, it’s in no way toxic and thoroughly safe for consumption. Without colour or odour, it boasts a consistency that’s runny and thin, which means it’s an ideal conduit for delicious e-juice flavours (like, say, Yankee All Stars e liquid). For all those reasons, a vape liquid that could be described as PG-dominant can be relied on for full, throaty hits, comparable to that of a cigarette.
Vegetable glycerin (VG)
Technically sourced from palm plant oils, often cropping up in medications and cosmetic products as an additive and also entirely non-toxic and entirely safe to consume, VG otherwise essentially does the opposite for e-liquid that PG does. It’s great for ensuring the liquid has a thicker, less runny texture, which means a vape juice that’s VG-dominant is liable to carry a vapour with a sweet odour so many not be great for non-sweet flavoured vapers (such as, say, Nicohit Purple Lush), yet is always relied on to deliver lots of vapour.
PG vs. VG?
As noted above, PG and VG tend to counteract each other in an e-juice, hence why they’re not just essential base ingredients of so many but are mixed to varying ratios (or percentages) in vape juices purchasable from any e liquid manufacturer UK. More specifically, the relationship between PG and VG can be defined as follows:
The final analysis
Your position on the age-old PG-or-VG-debate will always, in the end, come down to what you value most from your vape. As mentioned above, a vaping experience that’s closer to that of smoking a cigarette tends to be delivered by high-PG liquids, so these may be the best bet for those looking to ditch the ciggies and move on to nicotine-vaping or, indeed, very recent ex-smokers (whatever brand of vape juice they plump for – Uncles Vape or any other).
Alternatively, high-VG liquids are great for those who’ve moved away from nicotine dependency, offering up, as they do, many plumes of vape cloud, so they’re great for ‘vapour chaser’ contests – and the experimental building and use of mod devices. Or, again, many vapers like to take a middle-ground and opt for a 50-50 PG-VG blend. The best of both worlds? Why not!