Propylene glycol sounds like a complicated chemical; however, it surprises many people to find out it is a common additive. In fact, consumer and medical goods commonly contain PG. Propylene glycol’s chemical property of binding to molecules like nicotine allow them to be carried by vapor.

The US Food and Drug Administration (FDA) and the World Health Organization (WHO) both regard PG as safe to use. Though, PG has been under attack by critics who claim harmful byproducts may result in heating it. A study conducted by Portland State University found that heating Propylene Glycol at very high voltage would produce a higher amount of formaldehyde gas than traditional cigarettes.

However, analysis of their findings revealed that power levels used in the study were considerably higher than the majority of users. Additionally, vaping at that high of a voltage would cause fouling of the flavor. It was argued that it is rare for any vapers to have their devices consistently tuned to heat vape juice at that high of a temperature.

Is Propylene Glycol Dangerous For Vaping?

With this is mind, there is a chance users may be allergic to propylene glycol. Initial symptoms may include sore throat, body rash, diarrhea, and muscle pain. These effects can manifest themselves similarly to the flu initially. Consult the advice of a medical professional if experiencing symptoms longer or more intense than normal.

The determination of whether propylene glycol is bad for you still requires more research. However, whenever you’re unsure about something, it’s best to use it in moderation. If you have your reservations about vaping PG at all, it would be wise not to select a high PG vape juice. Most e liquids available offer some blend of PG and vegetable glycerin, with VG occupying the dominant ratio of the juice.

If you have further questions or concerns regarding PG or any other additives to vape juice, we recommend you do your research. Knowing and understanding both the benefits and the risks of what you choose to put into your body puts the power in your hands. While we don’t endorse anything as a healthy fix, cure, alternative or medical practice, we have dedicated over fifteen years to vaping and haven’t looked back since our first puff.