Magnesium Oxide
A cosmetic ingredient used as absorbent, buffering, opacifying in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Magnesium oxide (CI 77711)
What does it do?
Magnesium Oxide is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Absorbent
takes up water-based or oil-based substances
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Buffering
stabilises the pH of a product
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Opacifying
makes a transparent or translucent formulation opaque or pearlescent
EU regulatory status
Magnesium Oxide is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.
Frequently asked questions
What is Magnesium Oxide?
Magnesium Oxide is a cosmetic ingredient catalogued in the EU CosIng database. Magnesium oxide (CI 77711)
Is Magnesium Oxide allowed in cosmetics in the EU?
Yes. Magnesium Oxide is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Magnesium Oxide do in cosmetic products?
Magnesium Oxide is declared in the EU cosmetic ingredient inventory with these functions: absorbent, buffering, opacifying.
What is the CAS number of Magnesium Oxide?
The CAS (Chemical Abstracts Service) number for Magnesium Oxide is 1309-48-4.
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