Which brands contain diacetyl in their vape juices? Knowledge Kaiweili Digital Technology Flavors without Diacetyl Nature's Flavors FlavorTudes 12 Pack SAMPLER Flavor Shots Vape juice contains a long list of chemicals, many of which aren't even listed on the packaging. Testing has also shown that vapes labelled "nicotine free" can have high nicotine levels. 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 Diacetyl notice! : r Vaping