The drink’s formulation includes carbonated water for a refreshing feel and citric acid for a slight tartness. Taurine, present at 0.4%, plays a key role in muscle and cellular function, while caffeine (0.03%) delivers the core stimulant effect. A mix of natural and artificial flavors ensures that the familiar Red Bull taste is preserved. Sodium bicarbonate and magnesium carbonate act as acidity regulators, stabilizing the drink’s profile. Red Bull Sugar Free uses aspartame and acesulfame K as non-nutritive sweeteners to replace sugar while maintaining sweetness. Xanthan gum is added to enhance the mouthfeel and consistency. The drink also includes important B-group vitamins such as niacinamide (Vitamin B3), pantothenic acid (B5), vitamin B6, and vitamin B12, which contribute to energy metabolism and help reduce fatigue.

Red Bull Sugar Free Energy Drink 12 × 473ml is free from the 14 major allergens recognized by UK and EU food standards. It is also gluten-free, lactose-free, and suitable for those following a GMO-free diet. While the drink is safe for most healthy adults, it is not recommended for children, pregnant or breastfeeding women, or individuals sensitive to caffeine due to its high caffeine content. Additionally, the presence of aspartame means that individuals with phenylketonuria (PKU) should avoid it, as aspartame contains phenylalanine. Always check the product label for the most up-to-date allergen and ingredient information, especially if you have specific dietary needs.