Earlier today I was searching the net for information on PG. I came across two interesting articles, one a posting on ECF in 2009.
Both claim PG is used in tobacco cigarettes.
http://www.e-cigarette-forum.com/fo...38-pg-cigarettes-has-been-inhaled-before.html
Toxicological considerations on the use of propyle... [Toxicology. 2010] - PubMed result
Both claim PG is used in tobacco cigarettes.
http://www.e-cigarette-forum.com/fo...38-pg-cigarettes-has-been-inhaled-before.html
Toxicological considerations on the use of propyle... [Toxicology. 2010] - PubMed result