TFA flavour concentrates are Naturally and Artificially Flavoured. Made in the USA by The Perfumers Apprentice& Rebottled by Vapour Depot in the UK. Available Sizes: 10ml, 30ml, 100ml Recommended Mix (Single Flavour): 7% Recommended Mix (Multiple Flavour Recipe):3% Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. TFA Caramel Concentrated Flavouring A large range of flavours for use in various applications such as: Baking, Candy-Making, Carbonated water (soda flavors), and many other applications that have fun with flavors!. This flavor is a different type of caramel than our original. We have discovered that there are fans of both, but please start with a small size to make sure that it is right for you!