Has she tried actual tobacco extraction type
ejuice? I'm not talking about WTA vendors.
A couple of Naturally Extracted Tobacco ( NET) vendors who I've tried and liked are:
Heather's Heavenly Vapes
The Plume Room - Candied Cavendish
There is also some vendors who make their tobacco ejuices from tobacco absolute, another type of extraction. They all have a distinct taste and aftertaste, which makes me think they could have different properties that might also be helpful.
Velvet Cloud Vapor makes this kind.
There is a thread in the
eliquid forum all about extracted tobaccos and some real experts in the matter. You might want to join in and ask for other vendors.
Natural Tobaccos