Yellow #5 Lake Blue #2 Lake

Yellow 5 Lake and Blue 2 Lake are synthetic color additives. They are made by reacting FD&C Yellow No. 5 and FD&C Blue No. 2, respectively, with aluminum hydroxide to create insoluble pigments. These lakes are used to provide vibrant and stable colors in food products.

Manufacturers add Yellow 5 Lake and Blue 2 Lake to provide or enhance the color of foods. They are often found in confectionery, baked goods, snacks, and beverages where a specific visual appeal is desired. Their insoluble nature makes them suitable for dry mixes and products with low moisture content.

Yellow 5 (Tartrazine) and Blue 2 (Indigotine) are approved food color additives by the FDA. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Yellow 5 and Blue 2, though a timeline for this is not yet set. Some individuals may experience sensitivity reactions to Yellow 5. The European Food Safety Authority (EFSA) has evaluated these colors, and JECFA has established acceptable daily intakes. Evidence regarding the health effects of these dyes at typical consumption levels is mixed, with ongoing research and debate.