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Ammonium Hydroxide

A cosmetic ingredient used as buffering, denaturant in skincare, haircare, and personal-care products sold in the European Union.

What is it?

Ammonium hydroxyde

What does it do?

Ammonium Hydroxide is listed in the EU cosmetic ingredient inventory with the following declared functions:

  • Buffering

    stabilises the pH of a product

  • Denaturant

    makes ethanol in cosmetics unfit for drinking — required by regulation when alcohol is used

EU regulatory status

This ingredient is restricted in the European Union.

Ammonium Hydroxide is listed under Annex III of EU Cosmetics Regulation 1223/2009 (entry 4). It is permitted only under specific conditions, concentration limits, or in particular product types.

Frequently asked questions

What is Ammonium Hydroxide?

Ammonium Hydroxide is a cosmetic ingredient catalogued in the EU CosIng database. Ammonium hydroxyde

Is Ammonium Hydroxide allowed in cosmetics in the EU?

Only with restrictions. Ammonium Hydroxide is permitted in EU cosmetics only under specific conditions defined in Annex III of Regulation 1223/2009.

What does Ammonium Hydroxide do in cosmetic products?

Ammonium Hydroxide is declared in the EU cosmetic ingredient inventory with these functions: buffering, denaturant.

What is the CAS number of Ammonium Hydroxide?

The CAS (Chemical Abstracts Service) number for Ammonium Hydroxide is 1336-21-6.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 15/10/2010