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 Juul e cigarettes win FDA authorization, sources say Is Formaldehyde in Vapes? Do Juul Pods Contain Formaldehyde FDA rescinds marketing ban on Juul vaping products One Juul pod contains the same amount of nicotine as a pack of 20 cigarettes. #NDAFW #drugfacts E Cigarettes Vaping with Juul & Other Electronic Cigarettes