Flavor West flavour concentrates are Naturally and Artificially Flavoured. Made in the USA & Rebottled by Vapour Depot in the UK. Available Sizes: 10ml, 30ml, 100ml Recommended Mix (Single Flavour): 10% Recommended Mix (Multiple Flavour Recipe):4% Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. FW Strawberry Milkshake Concentrated Flavouring We know that all you really want is a delicious tasting, high quality food grade concentrated flavoring, and that’s precisely what we bring you. Strawberry milk shake flavor offers a smooth and milky strawberry taste. This flavor standalone on its own and can be a great start to other recipes.