What function does ALUMINUM HYDROXIDE serve in cosmetics?

According to the EU CosIng inventory, ALUMINUM HYDROXIDE carries the following function designation(s): HUMECTANT, OPACIFYING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING, VISCOSITY CONTROLLING.

What other records share CAS 21645-51-2?

CAS 21645-51-2 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

InventoryRef 7421524/05/2018

ALUMINUM HYDROXIDE

Q: How do I check if my formula contains ALUMINUM HYDROXIDE?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

Aluminium hydroxide

ALUMINUM HYDROXIDE is linked to 1 EU annex record on this page.

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Inventory details for ALUMINUM HYDROXIDE

INCI name

ALUMINUM HYDROXIDE

INN name

aluminium hydroxide

Description

Aluminium hydroxide

Annex records for ALUMINUM HYDROXIDE

Annex IV Shared CAS number

Entry 118

CI 77002

CAS: 1332-73-6; 21645-51-2; 8011-94-7

EC: 215-573-4; 244-492-7; -

Key data

CAS

21645-51-2

244-492-7

Restriction

—

Function

HUMECTANT OPACIFYING SKIN CONDITIONING - EMOLLIENT SKIN PROTECTING VISCOSITY CONTROLLING

How ALUMINUM HYDROXIDE appears in the CosIng inventory

The CosIng inventory lists ALUMINUM HYDROXIDE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

ALUMINUM HYDROXIDE is also tagged with 5 cosmetic functions 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

ALUMINUM HYDROXIDE 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.

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

CAS 21645-51-2 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.

View CAS records

Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for ALUMINUM HYDROXIDE

This page combines the CosIng inventory entry for ALUMINUM HYDROXIDE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research ALUMINUM HYDROXIDE 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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Tools & next steps

Check your formula

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Search similar ingredients

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