Is 2-Nitro-p-phenylenediamine banned?
2-Nitro-p-phenylenediamine is permitted by the US FDA. Several countries restrict, warning-label, or have reviewed it for safety concerns. The US has more lenient additive rules than the EU, UK, Canada, and Japan, which is why this ingredient remains widely used here.
Why 2-Nitro-p-phenylenediamine is flagged
Concentration-restricted in the EU over genotoxicity concerns.
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