Which brands contain diacetyl in their vape juice? Knowledge Kaiweili Digital Technology Which brands contain diacetyl in their vape juices? Knowledge Kaiweili Digital Technology AL FAKHER VapingStory 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 you can feel fine while your lungs are still taking the hit. That is the trap with vaping. The device looks cleaner than a cigarette, smells softer, and fits into normal life.