Thanks @Adephi, I actually forgot that most of the concentrates are food flavourings! I wonder than in what way Flavorah is different from the food flavourings...
@RichJB might give you a more complete answer.
As far as I know there is not that much difference. Flv is just aimed solely at vaping as the target market. Eg. Capella will have a v1 and v2 of some flavourings where the v1 will contain diketones. But Flv is completely clear of it.