APPENDIX The Youth Vaping Epidemic: Federal Regulation of E cigarettes and the Rise of Juul and Puff Bar Disposable ecigs expose users to much higher levels of toxic metals than earlier generations of ecigs or cigarettes Stanton Glantz blog Putain des Palaces Eau de Parfum Etat Libre d'Orange McKinsey & Company was hired by JUUL to investigate teens' favorite flavors of e cigarettes. Their survey's conclusion was that kids liked mint e cigarettes and would switch to those if other flavors were