Thank you!
Do you happen to know by what kinds of processes extracts and absolutes are obtained, and what would make them less (or more) natural than an NET flavor?
"Natural" is such a loaded word.

Only one company that I know of, Velvet Cloud Vapor, actually makes v their own tobacco absolute. Generally it is a concentrated consumer product available at most diy and fragrance supply shops. Anyone can buy a 5ml bottle which has the concentrated essence of a dozen tobacco pplants, and make "tobacco" juice.
NET on the other hand, is more of an artisan product because the tobacco is usually processed by the vendor themselves, with great care taken as to the flavors, varieties, and types used.