Regulatory data is for reference only. Always verify with the official regulator before making formulation decisions. Last refreshed: 7/12/2026.

Ingredients/1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex III

1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex IIICAS 123-31-9

EU CosIng Annex II — prohibitedEU CosIng Annex III — restricted

Regulatory status

SourceStatusAnnex / DetailsLimit / ConditionsLast updated
EU CosIngprohibitedAnnex II—
EU CosIngrestrictedAnnex III0.02% (after mixing for use)—

What this means

1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex III has regulatory signals in EU CosIng and EU CosIng. Review the source links above for the official conditions and latest updates.

Common questions

Is 1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex III restricted in EU cosmetics?
1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex III is prohibited in EU cosmetics according to EU CosIng Annex II.
What is the CAS number for 1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex III?
The CAS number for 1,4-Dihydroxybenzene (Hydroquinone), with the exception of entry 14 in Annex III is 123-31-9.

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