Propylene glycol used in tobacco

[5cardstud]

This study shows that using propylene glycol in tobacco showed no difference than tobacco without propylene glycol. I'm not a doc or scientist but from what I see it was harmless. Here's the link
:Toxicologic evaluation of humectants added to ciga... [Inhal Toxicol. 2002] - PubMed result

 

[NinetyNine]

I glossed over this the first time I read your post, as I knew that PG was pretty benign and had been studied for a while(asthma meds, etc). However, I read the link this time and... They tested glycerin, not just PG, and found no increased damage compared to regular smoke without the humectants. That's very encouraging. If you can edit your thread title, please change "Propylene glycol" to "Propylene glycol/Glycerin".