ACID RED 33
ACID RED 33 is permitted in cosmetics in the EU with restrictions — Annex III, entry 254 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
Disodium 5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate (CI 17200)
EU regulatory status
Annex of Regulation (EC) No 1223/2009: III/254
Regulatory note: (Acid Red 33)
What entry III/254 of the Regulation says
Disodium 5-amino-4-hydroxy-3-(phenylazo)naphathlene-2,7-disulphonate (see note 17); (CI 17200)
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.
- View the entry in the CosIng database (European Commission)
- Open Regulation 1223/2009 in EUR-Lex
- Check the chemical profile in PubChem
Last updated:
Functions in cosmetics
Frequently asked questions
Is ACID RED 33 safe in cosmetics?
ACID RED 33 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 ACID RED 33 fall?
ACID RED 33 falls under reference III/254 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 ACID RED 33 perform in cosmetics?
According to the European Commission's CosIng database, ACID RED 33 performs the following functions in cosmetics: HAIR DYEING. 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 ACID RED 33?
We found 1 recent alerts in the EU Safety Gate database in which ACID RED 33 appears in the risk description or on the ingredient list of a recalled cosmetic. The full list and details of each alert are below in the Safety Gate alerts section.
Safety Gate alerts mentioning this ingredient
We found 1 recent EU Safety Gate alerts that mention ACID RED 33 in the hazard description or ingredient list.