Ingredient · Updated
Blue 2
Found in 2 products
What is Blue 2?
Blue 2, also known as Indigotine, is a synthetic dye commonly used to add blue color to various foods, drinks, and candies. It is produced through a complex series of chemical reactions starting from petroleum-based raw materials.
Blue 2 is favored for its bright hue and stability in acidic environments. While approved for use by many health authorities, some studies have raised questions about its long-term safety, particularly in high doses, leading to regulatory scrutiny in some regions.
When you see Blue 2 on a label, it's worth noting that the dye is primarily used for aesthetic purposes and doesn't add nutritional value. Consumers sensitive to artificial dyes may choose to avoid it.
Commonly found in: candy, beverages, baked goods, desserts
What to watch
- Some animal studies have linked Blue 2 to potential allergies and hyperactivity in children.
- Concerns exist over potential carcinogenicity, but evidence in humans is not conclusive.
The FDA approves Blue 2 for use in food, but it has imposed certain usage limits. It is required to be clearly labeled.
Research is mixed; some studies highlight safety at low doses, while others point to potential risks.
Blue 2 is a synthetic dye and not derived from animal sources, thus generally considered vegan.
Sources: Color Additive Status List · Food, Drug, and Cosmetic (FD&C) Act
Scout's take
Petroleum-derived synthetic dye (Indigo Carmine).
All 2 products with Blue 2
Where Blue 2 shows up
- Candy 2 products
Higher-scoring picks without Blue 2
Products from the same categories whose analyzed ingredient list does not include Blue 2, scoring 80 or above.
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