Interestingly enough, there are a lot more options nowadays thanks to the "e-cig" or "vape" market. It's always been available for hobbyists/non-industrial/con

Interestingly enough, there are a lot more options nowadays thanks to the "e-cig" or "vape" market. It's always been available for hobbyists/non-industrial/consumer use in candy, etc. but now there are a lot more sites where you can order from multiple vendors of food-grade flavor concentrates. I actually learned a lot more than I'd expected regarding what compounds and extracts go into them and how they combine. If nothing else, the "DIY vape liquid" community is really into researching the specific components since the goal is both to make something that tastes good and also provides the safer alternative to smoking that they were after in the first place. Anyway, I'm getting off topic but you'll definitely find loads of info on those sorts of forums. Common brands include The Flavor Apprentice, LorAnn, Capella, FlavourArt, and Inawera among others.