Ingredient function

HAIR DYEING — Cosmetic Ingredient Function

428 cosmetic ingredients in the EU CosIng inventory carry the HAIR DYEING function designation. These ingredients are sourced from the European Commission CosIng inventory and may appear across Annex II–VI records.

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

Ingredients
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Ingredients

Chromium, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulphonic acid complex (CI 15711)

CAS 5610-64-0 II/1323

Hydrogen [4-[4-(diethylamino)-2',4'-disulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene]diethylammonium, sodium salt (CI 42045)

CAS 129-17-9 II/1355 (Acid Blue 1; CI 42045: when used as a su…

Bis[hydrogen [4-[4-(diethylamino)-5'-hydroxy-2',4'-disulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene]diethylammonium], calcium salt …

CAS 3536-49-0 II/1356 (Acid Blue 3; CI 42051: when used as a su…

Sodium 1-amino-4-(cyclohexylamino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate (CI 62045)

CAS 4368-56-3 III/195 IV/94

Disodium 5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate (CI 73015)

CAS 860-22-0 IV/99

2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonic acid aluminium complex (CI 73015)

CAS 16521-38-3 IV/99

Dihydrogen (ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)]amino]-2'-sulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene](3-sulphonatobenzyl)amm…

CAS 3844-45-9 III/190

N-Ethyl-N-[4-[[4-[ethyl(3-sulfophenyl)methylamino]phenyl](2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene]-3-sulfobenzenemethanaminium…

CAS 68921-42-6 III/190

N-Ethyl-N-[4-[[4-[ethyl(3-sulfophenyl)methylamino]phenyl](2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene]-3-sulfobenzenemethanaminium…

CAS 2650-18-2 / 6371-85-3 / 37307-56-5 III/190

Disodium 3,3'-[sulphonylbis[(2-nitro-p-phenylene)imino]]bis[6-anilinobenzenesulphonate] (CI 10410)

CAS 6373-79-1 II/1258

Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-) (CI 10020)

CAS 19381-50-1 II/1342 (Acid Green 1; CI 10020: when used as a s…

Sodium 4-[[3-[(dimethylphenyl)azo]-2,4-dihydroxyphenyl]azo]benzenesulphonate (CI 20170)

CAS 1320-07-6 / 6371-84-2 II/1232

Sodium 2-anilino-5-(2,4-dinitroanilino)benzenesulphonate (CI 10385)

CAS 6373-74-6 II/1280

Sodium 4-(2,4-dihydroxyphenylazo)benzenesulphonate (CI 14270)

CAS 547-57-9 II/1330 (Acid Orange 6; CI 14270: when used as su…

Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate (CI 15510)

CAS 633-96-5

Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate (CI 16255)

CAS 2611-82-7 III/192 (Acid Red 18; Acid Red 18 Aluminum Lake) …

Aluminium, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonic acid complex (CI 16255:1)

CAS 12227-64-4 III/192 (Acid Red 18; Acid Red 18 Aluminum Lake) …

Chromate (1-), hydroxy(2-(hydroxy)-3-((hydroxy)-1-naphthalenyl)azo-5-nitrobenzenesulfonato(3))-, sodium (CI 15685)

Trisodium 3-hydroxy-4-(4'-sulphonatonaphthylazo)naphthalene-2,7-disulphonate) (CI 16185)

CAS 915-67-3 II/1350 (Acid Red 27; CI 16185: when used as a su…

Trisodium 3-hydroxy-4-(4'-sulphonatonaphthylazo)naphthalene-2,7-disulphonate, aluminium lake (CI 16185:1))

CAS 12227-62-2 II/1350 (Acid Red 27; CI 16185: when used as a su…

Disodium 5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate (CI 17200)

CAS 3567-66-6 III/254 (Acid Red 33) IV/37 (CI 17200)

Disodium 5-(acetylamino)-4-hydroxy-3-[(o-tolyl)azo]naphthalene-2,7-disulphonate (CI 18065)

CAS 6441-93-6 II/1295

About this function

The HAIR DYEING function is assigned by the European Commission in the CosIng ingredient inventory. Ingredients may carry multiple functions depending on their chemical properties and typical cosmetic applications.

Function assignments are sourced directly from official EU CosIng data. Always verify ingredient functions against current source materials before use in regulatory submissions.