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An oxidizing agent primarily used in hair dyes and bleaches to lighten hair. It acts as a strong bleaching accelerator.
May aggravate
Safety summary
Can be a skin and respiratory irritant, especially in high concentrations or with prolonged exposure. Patch testing is recommended.
CAS Number
7727-21-1
1% line marker
This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.