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This ingredient is used in hair dye formulations to help create and stabilize the desired color. It acts as a coupler, reacting with other dye intermediates to form permanent hair color.
May aggravate
Safety summary
It can be a skin sensitizer and may cause allergic reactions in some individuals, especially those with sensitive skin or known allergies to hair dyes. A patch test is recommended before use.
CAS Number
108-73-6
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.