FDA Allows Best Selling E Cigarette Vuse Alto, but Only in Tobacco Flavor MedPage Today Evidence update on the cancer risk of vaping e cigarettes: A systematic review VUSE HAS 99% FEWER TOXICANTS THAN CIGARETTES. WE'RE WORKING ON THAT REMAINING 1%. Vaping Harmless. Vape aerosol contains toxic chemicals like formaldehyde, arsenic, lead, chromium, and nickel. They damage lungs. They harm developing brains. They raise cancer risks. We Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years.