Because of my taste sensitive buds, I have found that most — not all flavor manufacturers will tell you if you ask. TFA is the only one I am aware of that has a website listing these muting ingredients. In addition to TFA, I know that I cannot
vape LB, any of the WF flavors with SC in it, VT is iffy as they claim they do but was not specific other than sucralose in their LMP so I am holding my breath that I can taste Fizzy Sherbet. FW I ask only when I am considering one of their flavors which isn't often and they do respond. So far I do not have any issues with FA, INW, FE and JF. I think CAP may use Stevia in some of their flavors. As for stuff like EM they say they do not. I use so little of CAP flavorings and so far the ones I have used are not an issue.
Added: No issues with NF either plus a few others that escape my mind at the moment.