Capella 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): 5% Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. Capella Concord Grape with Stevia Concentrated Flavouring A diverse and delicious line of water soluble, highly concentrated, multi-purpose flavouring.