Are PG and VG Safe to vape?
PG is used to deliver flavour and add a small ‘throat hit’ to mimic a hit of a cigarette.
Propylene Glycol is completely safe. It has a lot of uses, but it’s mainly used as a delivery agent in asthma inhalers. The PG holds the medicine in place as it’s inhaled, which ‘delivers’ it to the lungs. This has been the practice for over 50 years so we know for sure it’s totally safe to inhale. PG is a well known, highly used synthetic substance which is water-soluble, non-toxic and easily metabolised.
VG is used to thicken E Liquid and deliver larger clouds of vapour.
Vegetable Glycerine is a naturally sweet compound derived from vegetable fats. It’s most commonly used in cosmetics, pharmaceutical drugs and food products. Although approved for these uses, the question remained if VG was safe to inhale. A study in 2017 found “ no clear effects on the measured endpoints in the respiratory system” from inhaling VG or PG, meaning there was no change to the lungs after inhaling the main ingredients in E Liquid.
Both VG and PG are approved as safe additive substances the world over. To date, there has been no negative effects on health reported from using VG or PG in E Liquids.