Ban on flavored vaping may have led teens to cigarettes, study suggests Yale News The chase is on: Regulators are slowly cracking down on vapes aimed at teens OPB Federal flavor ban goes into effect Thursday, but many flavored vape products will still be available Flavored e cigarette sales, usage up among youths Parents: Teens Are Still Vaping, Despite Flavor Ban. Here's What They're Using Vermont Public Lightly Flavored or Tobacco Smoke Flavored Vape?