Juul's nicotine salts are dominating the market and other companies want in The Verge Puff bars: a dangerous trend in adolescent : Current Opinion in Pediatrics What vape products are still allowed under the new e cigarette policy? DYKOne Juul pod contains as much nicotine as a pack of cigarettes. Side effects include increased heart rate and blood pressure, lung disease, chronic bronchitis and insulin resistance leading to type 2 How Juul created a market, fueled a crisis, and why regulators failed to stop it : Planet Money : NPR