Tried to read through all the posts, so my apologizes if this has already been stated. But actually, tetramethylpyrazine IS listed as an ingredient on Totally Wicked's
e-liquid bottles. Along with 15 other ingredients (some chemical-sounding in nature, others being nicotine oil, water, PG, etc.). But given that many of us probably tell people that all e-
juice contains is nicotine, PG, and flavoring, this is not necessarily the case after all.