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HC Yellow No. 2 is a direct dye used in hair coloring products to impart yellow tones or contribute to a broader color formulation. It temporarily colors the hair without requiring a developer.
May aggravate
Safety summary
Generally considered safe for use in hair dyes, but like all dyes, it has the potential to cause skin irritation or allergic reactions in sensitive individuals.
CAS Number
4926-55-0
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.