What is a Juul? It's a trend parents need to know about The Juul vaporizer can be disguised as a Sharpie or a USB stick, and contains nicotine, glycerol and other chemicals. The Vexing Vape: Officials Say Small Vaping Device Juul A Major Health Risk To Youth WKMS What Are the Best Juul Alternatives? Juul Alternative Device JUUL Vape Device Starter Kit Includes Pods Vape devices like Juul 'reversing' efforts to keep youth from tobacco: study