What is JUUL? Parents: Teens Are Still Vaping, Despite Flavor Ban. Here's What They're Using Connecticut Public Vaping may look harmless with fruity flavors and sleek devices, but it is more addictive and more damaging than smoking. More than 1.6 million teens are vaping, according to the Centers for JUUL E cigarettes Are Favorites Of Teens, And That's A Problem Side Effects Health and Medical News How Juul Hooked Teens on Vaping and Ignited a Health Crisis More than half of teens who vape use Juul, new studies show