Filtered Carbonated Water, Erythritol, Natural Flavours, Noot Proprietary Nootropic Herbs (Avena Sativa Extract, Schisandra Chinesis Extract, Melissa Officinalis Extract, Passiflora Incarnata Extract, Camellia Siensis Extract), Natural Colours (From Plants and Vegetables), Food Acid (Citric Acid), Acidity Regulator (Sodium Citrate).