Vaping has been marketed as a healthier alternative to smoking. But, do you actually know what is in your vape? Turns out vapes contain heavy metals, cancer causing agents, and so many more Vaping weed is popular, but there are many unknowns about its safety : NPR What's in vape smoke Ads of the World Part of The Clio Network Many people believe that vaping is less harmful than smoking, but that's a common misconception. In fact, in addition to nicotine, vapes can contain toxic chemicals that could be linked to cancer, Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times