FUN Light Vitamin Boost Lemon Lime is a sugar-free drink concentrate like other products in the FUN Light series, but now enriched with vitamins B6 and B3 [Niacin], both of which help reduce tiredness and fatigue. Light, fresh, and full of flavor. FUN Light Vitamin Boost Lemon Lime has a lively lemon taste and lime adds extra nice depth. Dilute Vitamin Boost with water or also try sparkling water, which makes it even fresher. Contains sweeteners and a source of phenylalanine