Gasping for Action A Watchdog Report Lab tests reveal popular e cigarette liquids contain harmful chemicals Vapes are clouded in misconception . They contain many of the same toxic and cancer causing chemicals found in regular cigarettes. One of these ingredients is diacetyl, used in popcorn flavourings for its Which brands contain diacetyl in their vape juices? Knowledge Kaiweili Digital Technology How Do I Know If My Vape Juice Is Safe?