STYRENE OXIDE
STYRENE OXIDE is permitted in cosmetics within the EU subject to the conditions laid down in Regulation (EC) No 1223/2009. Review the restrictions, permitted concentration and Safety Gate alerts.
Regulatory data checked on 2026-09-05. The legal status follows Regulation (EC) No 1223/2009 and its annexes; the substance is identified from the European Commission's CosIng database.
About the ingredient
Oxirane, 2-phenyl-,Styrene Epoxide
EU regulatory status
Regulatory note: CMR1B
Source: the European Commission's official CosIng database and Regulation (EC) No 1223/2009 of the European Parliament and of the Council on cosmetic products. How we assess ingredients — full methodology.
Last updated:
Functions in cosmetics
Frequently asked questions
Is STYRENE OXIDE safe in cosmetics?
STYRENE OXIDE is permitted in cosmetics in the EU, but subject to the conditions set out in Regulation (EC) No 1223/2009 — typically a maximum concentration, product category or a mandatory warning on the packaging. Manufacturers must comply with these limits.
What functions does STYRENE OXIDE perform in cosmetics?
According to the European Commission's CosIng database, STYRENE OXIDE performs the following functions in cosmetics: NOT REPORTED. Functions are defined in the CosIng glossary and describe the technological role of a substance in the finished product.
Are there Safety Gate alerts concerning STYRENE OXIDE?
Our copy of the EU Safety Gate database currently contains no alerts linking STYRENE OXIDE to a cosmetic recall. The database is refreshed regularly from the European Commission's official Safety Gate system.