Understanding Vape Juice Ingredients in the UK: What's in Your Vape? Cue Vapor 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. What Are the Ingredients in Vape Juice? What's actually inside that vape? Vaping devices don't just deliver flavor or a quick escapethey introduce a mix of chemicals, metals, and addictive substances into the body. Many believe they're just harmless Fact or Fiction? 5 Myths About IGET Vape Ingredients Vaping 101: Which Vape Juice Ingredients to Avoid