PLDEFRESITJęzyk: polski
INCI name

CI 26100

CI 26100 (Sudan III)

Colorantreviewed

A red disazo colorant listed in Annex IV and linked in EU data to an Annex II entry.

What it is

CI 26100 is the Colour Index number of a red colorant of the disazo class (1-(4-(phenylazo)phenylazo)-2-naphthol), also known as Sudan III. CosIng lists it as a colorant. In the EU it is listed in Annex IV (allowed colorants) with purity criteria; according to that entry it must not be used in products applied on mucous membranes. The EU data also link it to an entry in Annex II (prohibited substances).

Where it is used

Used to colour cosmetic products, mainly oils and other non-aqueous products.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

See the EU regulation section for what the Annex II and Annex IV entries cover and how they apply. The label does not show the amount of colorant used.

Functions

Colorant
Exclusively or mainly intended to colour the cosmetic product, the body as a whole or certain parts thereof, by absorption or reflection of visible light; (precursors of oxidative hair colorants shall be deemed colorants). All authorised colorants are substances in the positive list of Annex IV to the Cosmetics Regulation 1223/2009.

EU regulation

EU · Annex IV, entry 511-(4-(Phenylazo)phenylazo)-2-naphthol
Maximum concentration
Not to be used in products applied on mucous membranes
Conditions and warnings
Purity criteria: anilin<=0.2% 2-naphthol <= 0.2% 4-aminoazobenzene <-0.1% 1-(phenylazo)-2-naphthol<=3% 1-[2-(phenylazo)phenylazo]-2-naphthalenol<=2%
As of
3 November 2026 · (EC) 2009/1223
EU · Annex II, entry 13531-((4-Phenylazo)phenylazo)-2-naphthol (Solvent Red 23; CI 26100) when used as a substance in hair dye products
As of
3 November 2026 · (EC) 2013/344

Products with this ingredient (35)

Check a full ingredient list