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Home › Composition for dyeing keratin fibres, comprising a cationic para-phenylenediamine derivative substituted with a diazacyclohexane or diazacycloheptane ring

Composition for dyeing keratin fibres, comprising a cationic para-phenylenediamine derivative substituted with a diazacyclohexane or diazacycloheptane ring

US Patent 7186277 · Granted Mar 6, 2007

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