and @Sprkslfly - Could it be that the vegetable based PG is in fact 1,3 Propanediol? I believe that regular PG is a petrochemical and 1,3 Propanediol aka PDO and 1,3-Propylene Glycol is vegetable based; more specifically corned based.
Those with PG based sensitivities usually switch to PDO (The Perfumers Apprentice now sells it on their website) because they do not suffer from the negative reactions from standard PG.
Links:
The Good Scents Company - 1,3-propane diol | 1,3-propanediol
Yes I did , my bad ā¦
Good Question for Alysia ā¦ Hey youā¦ How are things
I donāt know. But if it is, some of us have already been down that road (not just by using flavors that were created with it as a primary carrier, but by using the actual product (PDO) itself), and I can say it wonāt end well (at least per my opinion and experience with it)!
Yes. Most definitely ask Alysia because Iām sure that would clear up a lot of confusion about the āPGā. Doing good Fidalgo! Thanks for asking (^_^) ! How are you?
Yeah, I think I know what your referring to regarding PDO in some flavors; Real Flavors? I was trying to catch up on the thread on the PDO vs Alcohol %'s in their actual flavors. What I remember is that some of their SCās did contain minimal amounts of it. I heard some good experiences and bad but I would def. have to recheck that RF thread.
Iāve never used PDO as a replacement for standard PG but I do know that a few mixers use it and a few CBD e-liquid companies use it as their base because the PG ratio is higher for CBD e-liquid. A lot of people complain about throat hit or that the CBD mixes better with PDO. I also know that Five Pawns e-liquid use PDO as their base and ppl seem to like it a lot.
Ah point taken 
. And FVās ava is just wearing a funny yellow nose?,(yeah, i know that doesnāt imply mod necessarily, but that distinctions got blurred has it not?)
BTW, if you could hand out a like for the top half of a post, you woulda got one for that, but then you ruined it with:
cos, for reasons that i;m not inclined to repeat, the jury is still out on how much of the population this potentially affects. or rather, it ought to be outā¦ 
Welllllā¦ (canāt resist) main reason is that corn is increasingly ubiquitous and so very well hidden that itās a marvel that anybody ever manages to figure out that they have a corn allergy (personal experience: it literally took me years of being forced to elimininate this that and the other from my diet, before I sussed what all those eliminated ingredients have in common.The moment of enlightenment came shortly after I had to -ironically- eliminate my antihistamine tablets ) .
So it stands to reason weāre looking at the tip of the iceberg,
@Sprkslfly @fidalgo_vapes - That could also explain why MF is so expensive. Not only their extraction process but also because they are using PDO; which is not cheap at all and very hard to get.
Thatās POINT 4 and POINT 6 percent for everyone.
I strongly (and I canāt emphasize that enough) doubt it.
Why? Iāve never experienced fading issues with MF. In fact, just the opposite.
MF frequently gets stronger (in a mix) as time passes. 
I understand there is a high interest in PG, but there is a whole lot of āblah, blah, blahā, between post 46 and 100.
Doesnāt seem like it, this is made both from petroleum and corn syrupā¦ although Wikipedia is known to be wrong from time to time.
1,3-Propanediol may be chemically synthesized by the hydration of acrolein, or by the hydroformylation of ethylene oxide to afford 3-hydroxypropionaldehyde. The aldehyde is hydrogenated to give 1,3-propanediol. Moreover, the bioconversion of glycerol to 1,3-propanediol is existent in certain bacteria.
Two other routes involve bioprocessing by certain micro-organisms:
Ooh, only just caught this one. (replies coming too thick and fast for my little brain)
Well worth a trial. (and would be very intersted in the results) but do be careful not to make assumptions on that basis.
Strikes me that The PG content in MF might be low enough to be considerered merely a trace? (That might account for lack of acknowledgement) . and that being so , It might be that not even my highly sensitive bod has managed to notice it yet. But , like I said before, i wouldnāt count on that situation continunig. And Iām certainly reacting to something-or-other ATM., and my vape is making me cough a bit (Iām just not willing to include my vape in an elimination trial, ATM. Iāll try that , as a last resort, if everything else gets the green light)
Also, consider there are way too many variables involved : degree of sensittivity, underlying etiology (which, again, surely differs between indivduals ) and whether itās the PG itself, or source material? (all-too-often unknown) . Hopefully, you can control enough of those variables to get meaningful ( and useful!) results, but then we can never safely generalise.
BTW, Iāve personally avoided PDO because itās made from corn. So canāt add to the knowledge base there.
What MF flaves are making you cough ??? My understanding is not all have PG in them , however I could be wrong
currently, itās a very old batch of Tangerine, and an equally old batch of Rum Truffle (containg MF rum and MF Dark Chocolate amongst other things. (The Dark Choc is already a bit of a calculated risk, you might say, because itās somewhere between rare and impossible for me to find a chocolate I can tolerate. Iām not altogether certain I can handle cocoa , though the disappointments are probably due to hidden ingredients and/or cross contamination. Iād have to grinfd my own Cocoa beans to be sure! In short, i really wouldnāt leap to any conclusions! not even if I nailed to MF, and not even if that particular flavour had PG in it. )
The cough is not so bad. Very mild asthma perhaps, or mayvbe triggered by pure irritation, nothing more, since iām trying to ease my way back into vaping after a recent lapse. Its my other symptoms, which are most likely due to ingesting corn in some form, that are really bugging me. and , no, you really donāt want to hear about those.
What I mean to say (in my long-winded fashion) is that MF is way down the bottom of the suspect list as yet. But Iād like to be forearmed with info in case it makes itās way to the top. So thanks! 
Not PDO ā¦I had to confirm lolā¦
