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Home › Composition for dyeing keratinous fibers, comprising at least one polycarboxylic acid or a salt, ready-to-use composition comprising it, implementation process and device

Composition for dyeing keratinous fibers, comprising at least one polycarboxylic acid or a salt, ready-to-use composition comprising it, implementation process and device

US Patent 7303588 · Granted Dec 4, 2007

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