Carbonated Water, Colour (Caramel), Phosphoric Acid, Sweeteners (Aspartame*, Acesulfame K), Flavourings (including Caffeine), Acidity Regulator (Sodium Citrate), Preservative (Sodium Benzoate), Anti-Foaming Agent (Dimethyl Polysiloxane).
*contains a source of Phenylalanine.