1 in 3 teens who vape say they get e cigarettes online, including through social media apps. (PMC study) Parents: Monitor online activity, start the conversation, and stay informed. Learn more at Conventional and multi omics assessments of subacute inhalation toxicity due to propylene glycol and vegetable glycerin aerosol produced by electronic cigarettes ScienceDirect E liquid The Benefits of Vegetable Glycerin and Propylene Glycol Eliquidstop Vaping: An Attack on Your Immune System NC DNA Day Blog Nicotine, propylene glycol, sweet flavorings, and various toxic chemicals like carcinogens and heavy metals are found in vape juice, posing health risks, especially to youth.