"PhytoEthers" as I call them ;-) If memory serves me correctly, from certifying as an Aromatherapist, phyto-chemicals are transferred during the distillation/extraction process. Unless they are purposely removed, as when creating "pure nicotine".
The bioavailability of the phyto-chemicals in the base-liquid may be closer to a homeopathic decoction once any PG, VG, flavourings, and/or pure nicotine liquid is added.
I'm hoping the people doing the extractions for base-liquids ARE keeping the "PhytoEthers". I ordered from Vaperite today ;-) I'm one who feels "something is missing" in nic-only liquids.