Note – You can find a more recent and in-depth version of this post here: Propylene Glycol in E-Cigs: Is PG dangerous to inhale?
In our latest article on The Smoker’s Angel, John looks at Propylene Glycol – and pops some myths.
Propylene Glycol Anti-freeze
One charge often levelled at e-cigarettes is that they contain anti-freeze. This is quite true, as John explains:
It is also employed … as a non-toxic antifreeze in drinking water systems
Hmm – in drinking water. They left that bit out!
Anti-smoking groups often argue that we don’t know what the ingredient does to us when we inhale it. But John finds data that states:
“There are no adverse health effects via inhalation”.
(Material Safety Data sheet – Mallinckrodt Baker Inc.).
Is it toxic?
John argues that the ingredient is not normally toxic, stating:
In one study, rats were given feed containing up to 5% PG over a period of 104 weeks (2 years) and they showed no apparent ill effects.
There are websites which will tell you the opposite. These are either sponsored/controlled by companies with a vested interest, e.g. health foods, “natural” cosmetics, etc. and /or people who deliberately or through ignorance misinterpret the results, for example saying it is toxic without mentioning it is only mildly toxic in extremely high doses.
Read the full article here: Propylene Glycol: The Principal Electronic Cigarette Ingredient