What's In Fake Juul Pods? 4 Signs Your Juul Pod Is Fake What's actually in an e cigarette? Juul can continue to sell e cigarettes, FDA says Canadian scientists exposed mice to vapour from JUUL e cigarettes and found it caused changes in the animals' pulmonary immune cell composition and altered gene and protein levels in their lungs. : r science Nicotine formula used by e cigarette maker Juul is nearly identical to the flavor and addictive profile of Marlboro cigarettes : r science Tobacco Tuesday Tip One Juul pod = 20 cigs. Some vapes = over 200. That's a lot of nicotine. Think before you puff. This school year, let's stand together with the