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Safety Assessment of 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate as Used in Cosmetics
Christina L Burnett1, Wilma F Bergfeld2, Donald V Belsito2
144002Cosmetic Ingredient Review Senior Scientific Analyst/Writer.
Abstract:
The Expert Panel for Cosmetic Ingredient Safety (Panel) reviewed the safety of 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate, which functions as an oxidative hair dye ingredient. The Panel reviewed relevant data provided in this safety assessment, and concluded that 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate is safe in the present practices of use and concentration in oxidative hair dye formulations.
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