You probably did not find the ingredients list, linked from the "Bulk Flavors" page only (as far as I know):
http://shop.perfumersapprentice.com/specsheetlist.aspx
Those lists do include AP and acetoin. I don't think any TFA flavors include diketones as an ingredient, not even their Movie Theater Butter flavor
If the flavors, or perhaps vaporized final juice were analyzed, the results might include trace amounts of diacetyl. That is the nature of diacetyl and why a lot of vapers are incorrectly asking for "diacetyl free" or "diketone free" flavors and eliquid. If you can't accept even trace amounts you really ought to be vaping unflavored or perhaps not vaping at all.
http://shop.perfumersapprentice.com/specsheetlist.aspx
Those lists do include AP and acetoin. I don't think any TFA flavors include diketones as an ingredient, not even their Movie Theater Butter flavor
If the flavors, or perhaps vaporized final juice were analyzed, the results might include trace amounts of diacetyl. That is the nature of diacetyl and why a lot of vapers are incorrectly asking for "diacetyl free" or "diketone free" flavors and eliquid. If you can't accept even trace amounts you really ought to be vaping unflavored or perhaps not vaping at all.