| 摘要 |
The present invention is related to a composition for dyeing by keratinous fibers oxidation, especially human keratinous fibers such as hair, comprising paraphenylendiamine and/or 2-methyl-para-phenylendiamine in combination with at least a properly selected metha-phenylendiamine derivative, and at least a properly selected tertiary paraphenylendiamine derivative, and to a dyeing process using this composition.
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