ASHES, Vol. 14(9) What's in that vape? Sending health warning messages by text BASIS (The Brief Addiction Science Information Source) Vaping is NOT Harmless. Know the long term effects before it's too late! Most e cigarette liquids contain high levels of nicotine, which is highly addictive. Despite the legal age being 21, vaping devices Toxicity, Chemistry, and Public Health Relevance of Emerging Nicotine Analog Vapes, Pods, and Pouches Chemical Research in Toxicology Disposable ecigs expose users to much higher levels of toxic metals than earlier generations of ecigs or cigarettes Stanton Glantz blog First comparison of dangers of tobacco cigarettes, e cigarettes and waterpipes