Maine issues recall for cannabis vapes due to unsafe pesticide levels A Beginner's Guide to THC Vape Pens Green Goods Counterfeit 'Dank Vapes' among products linked to lung illnesses Concern is growing about synthetic cannabinoids found in THC vapes stronger, riskier, and unpredictable. These substances sometimes called fake weed have been linked to seizures, paranoia and even Weed Pens & THC Vape Cartridges Catalyst Cannabis Stores sell supplies for fake, maybe dangerous, cannabis vapes Los Angeles Times