HC GREEN NO. 1
Official label name (INCIInternational name of cosmetic ingredients: the one printed on the pack. name, EU glossary of cosmetic ingredient names), No 11589
- Prohibited in cosmetics (Annex II)
HC GREEN NO. 1: Prohibited in cosmetics (Annex II, entry 1238), under Regulation (EC) No 1223/2009. Annexes of the Regulation consulted on 23 October 2026.
Who it concerns
This ingredient is prohibited in cosmetics in the European Union: what follows describes its hazards, not a permitted use.
What official classifications and rules say for each group. A classification describes the hazard of the pure substance, not the risk of a product that contains it, which depends on the dose and the exposure.
Prohibition or serious classificationThe text prohibits the substance for this use, or ranks it among the most serious hazards (known or presumed carcinogenic, mutagenic or reprotoxic, identified endocrine disruptor).Worth watchingThe text sets a condition or flags a hazard worth knowing: allergen, suspected effect, condition for children, hazard to the aquatic environment.For informationOfficial information with no condition on a finished product: warning to read, irritation of the pure substance.
Pregnancy and breastfeeding
Prohibited in cosmetics in the European Union for everyone, whatever the age or situation: no specific condition is therefore needed for this group.
Babies and children
Prohibited in cosmetics in the European Union for everyone, whatever the age or situation: no specific condition is therefore needed for this group.
Skin, eyes and allergies
No harmonised classification for sensitisation, irritation or eye damage, and no obligation to label it as an allergen.
Environment
No harmonised classification as hazardous to the aquatic environment, and it is not on ECHAEuropean Chemicals Agency.'s Candidate List as an endocrine disruptor for the environment.
Read on the label
The Cosmetics Regulation requires no warning to be printed for this ingredient.
In plain words
What it is used for
Functions declared by manufacturers:
Hair dyeing: colours hair.
Functions declared in the CosIngThe European Commission's database of cosmetic ingredients. inventory. CosIng, inventory of cosmetic ingredients (INCI names, CAS, EC, functions), retrieved 21 October 2026.
Definitions of functions (decision repealed on 8 May 2020, cited for information). Decision 2006/257/EC, inventory of cosmetic ingredients (definitions of functions), retrieved 22 October 2026.
What the rules say
It is prohibited to use it in a cosmetic product sold in the European Union, whatever the dose. If it appears on the ingredient list of a recent product, this needs checking: the record may be old or wrong, or the product intended for another market.
CosIng, Annex II of Regulation (EC) No 1223/2009 (prohibited substances), retrieved 23 October 2026, source updated 13 October 2026.
Origin and odour
No natural occurrence recorded in Wikidata (LOTUS database); this does not prove that the ingredient is synthetic.
Basis: one CosIng CAS, with no natural occurrence recorded in this database.
Wikidata: names of substances in six languages and taxa in which they occur (largely from the LOTUS database), retrieved 23 October 2026.
Present in 0.0% of recorded cosmetics (0 out of 19 871).
Open Beauty Facts, export of cosmetic products, retrieved 23 October 2026.
Data “Open Beauty Facts and its contributors”, licensed under ODbL 1.0 (opendatacommons.org/licenses/odbl/1-0); derived table distributed under the same licence.
The text of the annexes
Prohibited in cosmetics
CosIng links the name HC GREEN NO. 1 to this Annex II entry.
- Entry
- Annex II, No 1238
- Substance
- HC Green No 1
- CAS
- 52136-25-1
- EC
- 257-687-7
Regulation (EC) No 1223/2009, Annex II, entry 1238. CosIng, Annex II of Regulation (EC) No 1223/2009 (prohibited substances), retrieved 23 October 2026, source updated 13 October 2026.
Entry from Regulation (EC) No 1223/2009, adopted on 30 November 2009.
SCCSEU Scientific Committee on Consumer Safety: it assesses cosmetic ingredients. opinions cited: Opinion on HC Green No. 1; Opinion concerning Use of Permanent Hair Dyes and Bladder Cancer - Updated 2004; Opinion on Personal Use of Hair Dyes and Cancer Risk; Opinion on the Use of Permanent Hair Dyes and Bladder Cancer Risk; Assessment Strategies for Hair Dyes.
What has changed, and what will change
Dates of the texts that cover this ingredient. A text date may cover several substances: the details of each entry are below.
Annex II, entry 1238: introduced or replaced by Regulation (EC) No 1223/2009
Annex II, entry 1238: applies from this date
Identity
- CosIng identifier
- 34200
- CAS (according to CosIng)
- 52136-25-1
- EC (according to CosIng)
- 257-687-7
- Declared functions
- Hair dyeing
CosIng inventory. CosIng, inventory of cosmetic ingredients (INCI names, CAS, EC, functions), retrieved 21 October 2026.
Elsewhere in the world
Information on other jurisdictions, with no effect on sale in France. What is covered, and what is not yet.
Comparison between countries
Most restrictive status in each country, and the maximum concentration cited. The details and the source of each rule follow.
| Country | Rule | Maximum concentration cited |
|---|---|---|
| European Union | Prohibited in cosmetics | not cited |
| United Kingdom | Prohibited in cosmetics | not cited |
| Switzerland | EU Regulation applies | not cited |
| United States (federal) | No federal rule recorded | not cited |
| Canada | No entry in the lists recorded | not cited |
| Japan | No entry in the lists recorded | not cited |
| South Korea | Prohibited | not cited |
| China | Prohibited | not cited |
| Australia | No entry in the lists recorded | not cited |
| ASEAN | Prohibited | not cited |
| Taiwan | No entry in the lists recorded | not cited |
| Brazil | Prohibited | not cited |
United Kingdom (Great Britain)
- Prohibited in cosmetics (Annex II)
Same entries as in the European Union. Their maximum concentrations are compared in the “Comparison between countries” table; other conditions (product types, warnings) may differ.
Annexes II to VI in force. United Kingdom, Annexes II to VI of Regulation (EC) No 1223/2009 as retained and amended, retrieved 21 October 2026.
Contains public sector information licensed under the Open Government Licence v3.0.
Northern Ireland applies EU law.
Switzerland
Regulation (EC) No 1223/2009 applies in Switzerland (Article 54 of the Ordinance on Foodstuffs and Utility Articles).
Switzerland, FDHA Ordinance on Cosmetic Products (OCos, SR 817.023.31), consolidated version, retrieved 22 October 2026.
United States, federal rules
None of the integrated sections of the federal code (21 CFR 700.11 to 700.27 and 250.250) targets this name. The FDA does not publish a list of allowed ingredients.
United States, 21 CFR part 700 and section 250.250 (FDA rules on cosmetic ingredients), eCFR, retrieved 21 October 2026.
The eCFR is not an official legal edition of the Code of Federal Regulations.
South Korea
- Prohibited: 에이치시 녹색No.1
별표 1 (prohibited substances), entry 591, page 32.
South Korea, MFDS Regulation on Safety Standards for Cosmetics, Notification 2026-19, retrieved 22 October 2026.
Source: 식품의약품안전처 (MFDS), 화장품 안전기준 등에 관한 규정, via law.go.kr; table formatted by the publisher of this site.
China
- Prohibited: HC 绿 No 1 (HC Green No 1 （CAS No. 52136-25-1）)
表1 化妆品禁用原料目录 (prohibited substances, 2021年第74号), entry 777, page 附件2 (.doc) table row 777 ; TID reprint p.31.
China, NMPA catalogues of prohibited cosmetic ingredients (2021 No. 74, revised up to 2026), retrieved 22 October 2026.
Source: 国家药品监督管理局 (NMPA); plant catalogue as reprinted by the Trade and Industry Department of Hong Kong; table formatted by the publisher of this site.
ASEAN (South-East Asia)
- Prohibited: HC Green No 1
Annex II (prohibited substances), entry 1238, page 55.
ASEAN Cosmetic Directive, Annexes II, III, IV, VI and VII (version 2026-1 of 22 June 2026, Annex VII 2025-2), retrieved 24 October 2026.
Source: ASEAN Cosmetic Documents, Annexes of the ASEAN Cosmetic Directive, as published by the Health Sciences Authority (HSA, Singapore); table extracted and formatted by the publisher of this site, with no endorsement by HSA or ASEAN.
Brazil
- Prohibited: HC verde nº 1
RDC 529/2021, Anexo (prohibited substances), entry 1238, page 42.
Conditions, source text, in Portuguese
N° UE: 1238
Brazil, ANVISA resolutions RDC 529/2021, 528/2021, 600/2022 and 628/2022, retrieved 22 October 2026.
Source: ANVISA. Text of the adopted draft resolutions, as the Official Journal could not be accessed; the 2021 lists of prohibited substances and preservatives were compared with the copy of the published text distributed by the State of Paraná, the 2022 lists of UV filters and colorants were not.
Glossary: Commission Implementing Decision (EU) 2025/1175. Page updated on 23 October 2026.