Potent contact allergen, most common cause of hair dye allergy; cross-reacts with sunscreen PABA and sulfonamides; mandatory patch test 48h before use (EU requirement on label); EU Annex III; SCCS opinion on safety at 2% with advisory use; EU requires 'must not be used to colour eyelashes', risk of severe eye reaction
Function & Common Use
Hair Dye
Colorant
Permanent oxidation hair colour
Synthetic
Concentration Limits
2% max
EU Annex III: 2% max in hair dye (as free base); 6% with oxidant
Format restriction: Rinse-off
Baby restriction: Patch test mandatory; not for eyebrows/lashes
Frequently Asked Questions
Is P-Phenylenediamine safe to use in skincare?
P-Phenylenediamine has a High concern rating. Potent contact allergen, most common cause of hair dye allergy; cross-reacts with sunscreen PABA and sulfonamides; mandatory patch test 48h before use (EU requirement on label); EU Annex III; SCCS opinion on safety at 2% with advisory use; EU requires 'must not be used to colour eyelashes', risk of severe eye reaction
Is P-Phenylenediamine allowed in India?
P-Phenylenediamine is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is 2% max.
What is P-Phenylenediamine used for in cosmetics?
P-Phenylenediamine functions as: Hair Dye. It is commonly found in: Permanent oxidation hair colour.
Is P-Phenylenediamine safe for babies?
P-Phenylenediamine has baby/child restrictions: Patch test mandatory; not for eyebrows/lashes. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.
Regulatory Status
EU Annex: Annex III
Identifiers
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