Hydroxypropyl-p-Phenylenediamine
INCI: HYDROXYPROPYL-P-PHENYLENEDIAMINE
Regulatory Status
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Safety Data
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Expert Verdict
SCCS opinion reversed in 2024 after additional data; restricted to oxidative hair colour only with concentration limit of 2%; not permitted for direct skin contact or eyelash/eyebrow use due to eye irritation potential.
Frequently Asked Questions
Is Hydroxypropyl-p-Phenylenediamine safe in cosmetics?
SCCS opinion reversed in 2024 after additional data; restricted to oxidative hair colour only with concentration limit of 2%; not permitted for direct skin contact or eyelash/eyebrow use due to eye irritation potential. The EU classifies Hydroxypropyl-p-Phenylenediamine as "restricted". Safety rating: MODERATE.
Is Hydroxypropyl-p-Phenylenediamine allowed in the EU?
Hydroxypropyl-p-Phenylenediamine EU regulatory status: restricted. Maximum allowed concentration: 2%. This is based on EU Regulation 1223/2009 and its amendments.
What does Hydroxypropyl-p-Phenylenediamine do in cosmetics?
Hydroxypropyl-p-Phenylenediamine functions as: Oxidative hair dye (coupler/developer). It is classified as a cosmetic ingredient in our database. CAS number: 73793-79-0 [^1_23].
What is the Margin of Safety for Hydroxypropyl-p-Phenylenediamine?
adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
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Related Ingredients
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