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Bis-(2-Hydroxyethyl)-p-Phenylenediamine Sulfate is a hair dye ingredient commonly used as an oxidative hair colorant, contributing to the permanent coloring of hair.
No specific concern data available
Safety summary
Generally considered safe for professional use in hair dyes, but can cause allergic reactions in some individuals; patch testing is recommended.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.