While specific ingredient details for Boost Energy Citrus Zing 250ml are not readily available, energy drinks of this nature typically comprise carbonated water, sugar, and citric acid, providing sweetness and tartness. Taurine and caffeine are included to enhance energy levels. Acidity regulators, flavourings, and natural colourings contribute to its distinctive taste and appearance. Sweeteners like aspartame and acesulfame K may be added. Preservatives such as sodium benzoate are commonly used. The beverage is often fortified with vitamins (Niacin, Pantothenic Acid, Vitamin B6, Vitamin B12) and may contain inositol.​

Boost Energy Citrus Zing does not list any major allergens such as milk, eggs, gluten, nuts, or soy in its ingredients. However, it may contain aspartame, a source of phenylalanine, making it unsuitable for individuals with phenylketonuria (PKU). As formulations can change, it’s advisable to check the product label for the most current allergen information before consumption.