Compoatlas

CI 16255

Official label name (INCIInternational name of cosmetic ingredients: the one printed on the pack. name, EU glossary of cosmetic ingredient names), No 6371

CI 16255: Allowed with restrictions, maximum 0.5% in the ready-for-use preparation, only in: Hair dye substance in non-oxidative hair dye products (Annex III, entry 192); colorant allowed under conditions (Annex IV, entry 35), under Regulation (EC) No 1223/2009. Annexes of the Regulation consulted on 21 October 2026.

Who it concerns

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

    No classification harmonised by the European Union covers reproduction, the unborn child or breastfeeding for this substance. This does not mean it has been judged to have no effect during pregnancy.

  • Babies and children

    The Cosmetics Regulation sets no age-related condition for this ingredient.

  • Skin, eyes and allergies

    No official classification for sensitisation, irritation or eye damage, and no obligation to label it as an allergen.

  • Environment

    No official classification as hazardous to the aquatic environment and no assessment 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:

Colorant: colours cosmetics and/or imparts colour to the skin and/or its appendages.

Hair dyeing: colours hair.

What the rules say

Allowed, with restrictions: Annex III sets a maximum concentration and the product types allowed. Ingredient lists do not give quantities, so the concentration cannot be checked on the label.

An ingredient can be used as a colorant only if it appears on the list of Annex IV. CI 16255 is on it with a warning to print.

The text of the annexes

Allowed with restrictions

This entry covers the same substance as CI 16255 (same CAS number in the CosIng inventory): its conditions apply.

Product type
Hair dye substance in non-oxidative hair dye products
Maximum concentration
0.5%
Entry
Annex III, No 192
Substance
Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and aluminium lake (Cl 16255) (see note 17).
Glossary names
ACID RED 18
CAS
2611-82-7 - 12227-64-4
EC
220-036-2 - 235-438-3
Dates in the act (3)
  • Entry into force on 15 May 2013
  • Application from 11 July 2013
    It shall apply from 11 July 2013.
  • Entry into force on 11 July 2013

Excerpts from the English text published in the Official Journal. A date may concern only some substances of the act: the excerpt says so.

Colorant allowed under conditions

Purity criteria
Purity criteria as set out in Commission Directive 95/45/EC (E 124)
Entry
Annex IV, No 35
Substance
Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and its insoluble barium, strontium and zirconium lakes, salts and pigments
Glossary names
CI 16255
CAS
2611-82-7
EC
220-036-2

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.

  1. Annex IV, entry 35: introduced or replaced by Regulation (EC) No 1223/2009

  2. Annex III, entry 192: introduced or replaced by Regulation (EU) n° 344/2013

  3. Annex III, entry 192: applies from this date

    Annex IV, entry 35: applies from this date

Identity

CosIng identifier
32728
CAS (according to CosIng)
2611-82-7
EC (according to CosIng)
220-036-2
Declared functions
Colorant, Hair dyeing

The CAS number cited by CosIng also covers 1 other INCI name: it designates a family of substances, not this ingredient alone.

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.

CountryRuleMaximum concentration cited
European UnionAllowed with restrictions0.5%
United KingdomAllowed with restrictions0.5%
SwitzerlandEU Regulation applies0.5%
United States (federal)No federal rule recordednot cited
JapanNo entry in the lists recordednot cited
South KoreaAllowed colorantnot cited
ChinaNo entry in the lists recordednot cited
AustraliaNo entry in the lists recordednot cited
BrazilNo entry in the lists recordednot cited

United Kingdom (Great Britain)

  • Allowed with restrictions (Annex III)
  • Colorant allowed under conditions (Annex IV)

Same entries as in the European Union. Conditions (concentrations, warnings) may differ: they are not compared here.

Switzerland

Regulation (EC) No 1223/2009 applies in Switzerland (Article 54 of the Ordinance on Foodstuffs and Utility Articles).

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.

South Korea

  • Allowed colorant: 적색 102 호 (뉴콕신, New Coccine) CI 16255 (New Coccine)

    색소 고시 별표 1 (allowed colorants), entry 28, page 2.

    Conditions, source text, in Korean

    영유아용 제품류 또는 만 13세 이하 어린이가 사용할 수 있음을 특정하여 표시하는 제품에 사용할 수 없음 | 비고: 타르색소

Recorded cosmetics that contain it

126 recorded products list it, according to Open Beauty Facts contributors. Records are dated: the formula may have changed. See the list (in French).

Glossary: Commission Implementing Decision (EU) 2025/1175. Page updated on 21 October 2026.