Why Are My Juul Pods Burning Is JUUL More Harmful Than Cigarettes? Understand the Risks Vaping Ban: Is This the Beginning of the End for Juul? GQ Juul's Harmful Side Effects Office for Science and Society McGill University What's really inside a vape? Many people think vaping is just flavored vapor, but the aerosol from e cigarettes can contain harmful substances that go straight into the lungs. According to the The Dangers of JUUL: What Families Need to Know The FDA is allowing vaping brand Juul to keep its e cigarettes on the market. Studies from Juul show its e cigarettes are less harmful for adult smokers, who can benefit from switching completely