INCI name

CI 16255

CI 16255 (Ponceau 4R)

A red colorant.

What it is

CI 16255 is the Colour Index number of a red azo dye known as Ponceau 4R.

Where it is used

Coloured cosmetics, soaps and some oral care 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.

Colorants are regulated in the EU in Annex IV of Regulation (EC) No 1223/2009, with conditions of use; see the EU regulation section.

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.
Hair dyeing
Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, permanent, depending on the length of time the colorant remains on the hair.

EU regulation

EU · Annex IV, entry 35Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and its insoluble barium, strontium and zirconium lakes, salts and pigments
Conditions and warnings
Purity criteria as set out in Commission Directive 95/45/EC (E 124)
As of
3 November 2026 · (EC) 2009/1223
EU · Annex III, entry 192Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and aluminium lake (Cl 16255) (see note 17).
Product type
Hair dye substance in non-oxidative hair dye products
Maximum concentration
0.5%
As of
3 November 2026 · (EC) 2013/344

Products with this ingredient (154)

Check a full ingredient list