Do you know what's in a vape? Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. Flavour chemicals, synthetic coolants and pulegone in popular mint flavoured and menthol flavoured e cigarettes Tobacco Control Electronic Cigarettes and Vaping: Factsheet Positive Choices Chemicals in e Cigarettes: Are They Harmful?