article_snippet: Propylene glycol is regularly used as a flavouring ingredient in drinks and food as E-1520.
article_snippet: Propylene is found in pharmaceutical and cosmetic products, but regulations of Propylene use differ between the US and the EU.
article_snippet: Popylene glycol is also found in automotive and aircraft anti-freeze, for Popylene ability to lower the freezing point of water.
article_snippet: The substance is also released alongside nicotine when smoking e-cigarettes.