2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID
2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID is permitted in cosmetics in the EU with restrictions — Annex III, entry 33 of Regulation (EC) No 1223/2009. Review the conditions of use, 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
AMPS,tert-Butylacrylamidosulfonic acid,1-Propanesulfonic acid, 2-Methyl-2-[(1-oxo-2-propen-1-yl)amino]-
EU regulatory status
Annex of Regulation (EC) No 1223/2009: III/33
What entry III/33 of the Regulation says
Ammonium fluoride
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 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID safe in cosmetics?
2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID 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.
In which annex of Regulation 1223/2009 does 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID fall?
2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID falls under reference III/33 in the annexes of Regulation (EC) No 1223/2009 on cosmetic products. An annex entry may name a substance directly or cover it as part of a broader category. The first part (Roman numeral) indicates the annex: II – prohibited substances, III – substances restricted by conditions, IV – permitted colorants, V – permitted preservatives, VI – permitted UV filters.
What functions does 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID perform in cosmetics?
According to the European Commission's CosIng database, 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID 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 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID?
Our copy of the EU Safety Gate database currently contains no alerts linking 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID to a cosmetic recall. The database is refreshed regularly from the European Commission's official Safety Gate system.