Disposable vapes are more toxic than cigarettes, contain lead: Study Disposable vapes more toxic and carcinogenic than cigarettes, study shows Ask an Expert: What you need to know about youth vaping Utah Public Radio E Cigarette Brands Are Skirting the Rules About Health Warning Labels on Instagram, Study Finds The Brink Boston University When you vape, you aren't just inhaling vapor. Vape juice also contains addictive nicotine and other toxins! #EliminateTobaccoUse and keep e cigs out of your lungs. [Source: CDC]