Flavorah flavour concentrates are Naturally and Artificially Flavoured. Made in the USA & Rebottled by Vapour Depot in the UK. Available Sizes: 10ml Recommended Mix (Single Flavour): 1% Recommended Mix (Multiple Flavour Recipe):0.5% Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. FLV Heat Concentrated Flavouring Flavorah focus all of their energy and attention to the flavoring concentrates that makes DIY e liquid and commercial ejuice an art form. This is a flavorless warming sensation. It adds a spicy warm to hot taste, opposite the cooling effect of a menthol.