Vape Juice Ingredients: What's Inside Your E Liquid? VITAE Glass Study Measures the Effects of JUUL Vaping on Users and their Surrounding Environment Thirdhand Smoke Resource Center Vape juice contains a long list of chemicals, many of which aren't even listed on the packaging. Testing has also shown that vapes labelled "nicotine free" can have high nicotine levels. The Danger of Chemicals Used in Vape Liquid The Science Blog Don't let the stylish designs and sweet flavors fool you; vaping can significantly increase your risk for serious respiratory and cardiovascular diseases, including: Chronic obstructive pulmonary disease Heart attacks and Vape Juice Ingredients Explained: What's Really in Your E Liquid? Ecigator