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InventoryRef 7668718/11/2016

HYDROQUINONE

Hydroquinone

HYDROQUINONE is linked to 2 EU annex records on this page. Inventory note: II/1339 III/14.

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Inventory details for HYDROQUINONE

INCI name

HYDROQUINONE

Description

Hydroquinone

Annex III Restriction reference
Entry 14

HYDROQUINONE

CAS: 123-31-9
EC: 204-617-8

Key data

CAS
123-31-9
EC
204-617-8
Restriction
II/1339 III/14
Function
LIGHT STABILIZER

How HYDROQUINONE appears in the CosIng inventory

The CosIng inventory lists HYDROQUINONE as a cosmetic ingredient and this page links it to 2 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

HYDROQUINONE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

HYDROQUINONE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for HYDROQUINONE reads: "II/1339 III/14". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, HYDROQUINONE carries the following function designation(s):

CAS 123-31-9 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.
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Source note for HYDROQUINONE

This page combines the CosIng inventory entry for HYDROQUINONE with 2 linked Annex II–VI records from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research HYDROQUINONE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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