Difference between VG and PG
The terms PG and VG are often used when referring to e-liquids; you can even spot %PG/%VG on your e-cig product description. The two have very distinct attributes and are often used in tandem to enhance your vaping experience. Here are some noted dissimilarities between the two:
• Vegetable Glycerin (VG): VG is a sweet, thick liquid responsible for producing heavy clouds of vapour and imparting an inherent sweetness to your e-liquid. It does not have an intense flavour on its own and has a limited shelf life.
• Propylene Glycol (PG): PG, on the other hand, is responsible for adding the throat hit to your e-cigarette. It generates fewer vapours, but has a very distinct flavour. It is user friendly, has a longer shelf life and is responsible for recreating a close to conventional smoking experience in your electronic device. However, it is also known to trigger allergies and skin rashes in certain users.
Which is a Better Alternative?
While VG provides your intense vapours, PG is responsible for generating a throat hit, therefore, it is hard to pick one over the other and generalize as to which is a more viable alternative. Choosing one over the other or using a combination of the two key components is a matter of personal taste and choice. If you would much rather have a thick cloud of vapour and do not care so much about the throat hit, you can go for a purely VG-based e-liquid or vice-versa if you want to feel the throat hit.
Both components are used in a variety of food products, and are thus considered fit for human consumption, so you do not have to really worry about any side effects from the electronic counterpart of the conventional cigarette. PG is sometimes known to trigger allergies in some users. In the event of a user being allergic to PG, that individual would have no choice but to resort to VG-based e-cigs alone. Those allergic to PG can rely on elements like Diacetyl for the throat hit.
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