Does dying your hair create cancer?

Type of hair dye

What dye causes cancer?

Red 3 causes cancer in animals, and there is evidence that several other dyes also are carcinogenic. Three dyes (Red 40, Yellow 5, and Yellow 6) have been found to be contaminated with benzidine or other carcinogens. At least four dyes (Blue 1, Red 40, Yellow 5, and Yellow 6) cause hypersensitivity reactions.

Why is red 40 banned?

When consumers are tasting the rainbow of this popular candy, they are also ingesting food dyes Yellow 5, Yellow 6, and Red 40. These dyes have been known to have adverse effects on young children. They are banned in foods for infants in the European Union, and foods that contain the dyes must carry a warning label.

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