Serene Tree Delta 8 THC Green Apple Vape Juice 500mg Vape Flavors and Vape Juice: What You Need to Know Johns Hopkins Medicine 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 Dank Vapes, TKO and Other THC Vaping Brands Are Linked to Illnesses, C.D.C. Says The New York Times