Inawera flavour concentrates are Naturally and Artificially Flavoured. Made in the Poland & Rebottled by Vapour Depot in the UK. Available Sizes: 10ml Recommended Mix (Single Flavour): 3% Recommended Mix (Multiple Flavour Recipe):2% Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. INW Grapefruit Concentrated Flavouring Inawera flavours have been created from food aromas especially reconstructed for vaping. All the ingredients have been laboratory tested and certified..