P-PHENYLENEDIAMINE HCL

Restricted CAS: 624-18-0CosIng #37250

P-PHENYLENEDIAMINE HCL is permitted in cosmetics in the EU with restrictions — Annex III, entry 8a of Regulation (EC) No 1223/2009. Review the conditions of use, permitted concentration and Safety Gate alerts.

Regulatory status as of 2026-08-28 (per the CosIng database).

About the ingredient

Benzene-1,4-diamine dihydrochloride (CI 76060)

EU regulatory status

Annex of Regulation (EC) No 1223/2009: III/8a

Source: the European Commission's official CosIng database and Regulation (EC) No 1223/2009 of the European Parliament and of the Council on cosmetic products. How we assess ingredients — full methodology.

Last updated:

Functions in cosmetics

Frequently asked questions

  • Is P-PHENYLENEDIAMINE HCL safe in cosmetics?

    P-PHENYLENEDIAMINE HCL is permitted in cosmetics in the EU, but subject to the conditions set out in Regulation (EC) No 1223/2009 — typically a maximum concentration, product category or a mandatory warning on the packaging. Manufacturers must comply with these limits.

  • In which annex of Regulation 1223/2009 is P-PHENYLENEDIAMINE HCL listed?

    P-PHENYLENEDIAMINE HCL is listed under reference III/8a in the annexes of Regulation (EC) No 1223/2009 on cosmetic products. The first part (Roman numeral) indicates the annex: II – prohibited substances, III – substances restricted by conditions, IV – permitted colorants, V – permitted preservatives, VI – permitted UV filters.

  • What functions does P-PHENYLENEDIAMINE HCL perform in cosmetics?

    According to the European Commission's CosIng database, P-PHENYLENEDIAMINE HCL performs the following functions in cosmetics: HAIR DYEING. Functions are defined in the CosIng glossary and describe the technological role of a substance in the finished product.

  • Are there Safety Gate alerts concerning P-PHENYLENEDIAMINE HCL?

    Our copy of the EU Safety Gate database currently contains no alerts linking P-PHENYLENEDIAMINE HCL to a cosmetic recall. The database is refreshed regularly from the European Commission's official Safety Gate system.

Want to know when a cosmetic on your shelf gets recalled?

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