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): 5% Recommended Mix (Multiple Flavour Recipe): 2% Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. TFA Elderberry 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 berry flavor comes from the Elderflower plant and is intended to portray the flavor of a \'cooked\' or \'processed\' Elderberry flavor; rich, sweet and jammy.