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Annex III Source last update: 02/03/2026

Restricted cosmetic substances

LIST OF SUBSTANCES WHICH COSMETIC PRODUCTS MUST NOT CONTAIN EXCEPT SUBJECT TO THE RESTRICTIONS LAID DOWN

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Total pages
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CosIng Checker is an independent reference website built from publicly available European Commission cosmetic ingredient materials, including Annex II–VI datasets.

Use these pages for research, discovery and comparison, but verify critical regulatory decisions against the official source text and current law.

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Records

373 total
Entry
151

Allyl trimethylhexanoate

Level of free allyl alcohol in the ester should be less than 0.1%

CAS
68132-80-9
EC
268-648-9
17/05/2013
Entry
151a

Allyl phenethyl ether

Level of free allyl alcohol in the ether should be less than 0.1%

CAS
14289-65-7
EC
238-212-2
17/05/2013
Entry
152

ALLYL HEPTINE CARBONATE

Allyl heptine carbonate (allyl oct-2-ynoate)

This material shall not be used in combination with any other 2- alkynoic acid ester (e.g. methyl heptine carbonate)

CAS
73157-43-4
EC
277-303-1
Max concentration 17/05/2013
Entry
153

Amylcyclopentenone

Amylcyclopentenone; 2-Pentylcyclopent-2-en-1-one
CAS
25564-22-1
EC
247-104-4
Max concentration 17/05/2013
Entry
154

Myroxylon Balsamum Pereirae Balsam Extract; Myroxylon Balsamum Pereirae Balsam Oil; Myroxylon Pereirae Oil; Myroxylon Pereirae Resin Extract; Myroxylon Pereira…

Myroxylon balsamum var. pereirae; extracts and distillates; Balsam Peru oil, absolute and anhydrol (Balsam Oil Peru)

The presence of the substance or substances shall be indicated as ‘Myroxylon Pereirae Oil/ Extract’ in the list of ingredients referred to in Article 19(1), point (g), when the concentration of the substance or substanc…

CAS
8007-00-9
EC
232-352-8
Max concentration 03/10/2023
Entry
157

Alpha-Damascone/cis-Rose ketone 1/trans-Rose ketone 1; Rose ketone 4 (Damascone); Rose ketone 3 (delta-Damascone)/trans-Rose ketone 3; cis-Rose ketone 2 (cis-b…

1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2-buten-1-one; 1-(2,6,6-Trimethylcyclohexa-1,3-dien-1-yl)-2-buten-1-one; 1-(2,6,6-Trimethyl-3-cyclohexen-1-yl)-2-buten-1-one; (Z)-1-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-buten-1-one…

(a) (b) The presence of the substance or substances shall be indicated as ‘Rose Ketones’ in the list of ingredients referred to in Article 19(1), point (g), when the concentration of the substance or substances exceeds:…

CAS
43052-87-5/ 23726-94-5/24720-09-0; 23696-85-7; 57378-68-4/ 71048-82-3; 23726-92-3; 23726-91-2
EC
-/ 245-845-8/ 246-430-4; 245-833-2; 260-709-8/ 275-156-8; 245-843-7; 245-842-1
Max concentration Product type 15/09/2023
Entry
159

TRANS-ROSE KETONE-5

trans-Rose ketone-5 (see note 16) (E)-1-(2,4,4-Trimethyl-2-cyclohexen-1-yl)-2-buten-1-one (Isodamascone)
CAS
39872-57-6
EC
254-663-8
Max concentration 23/05/2013
Entry
15a

POTASSIUM HYDROXIDE / SODIUM HYDROXIDE

Potassium or sodium hydroxide

(a) Contains alkali Avoid contact with eyes Can cause blindness Keep out of reach of children (b) 1. Contains alkali Avoid contact with eyes Can cause blindness Keep out of reach of children 2. For professional use…

CAS
1310-58-3 / 1310-73-2
EC
215-181-3 / 215-185-5
Max concentration Product type 11/01/2024
Entry
15b

LITHIUM HYDROXIDE

Lithium hydroxide

(a) 1. Contains alkali Avoid contact with eyes Can cause blindness Keep out of reach of children 2. Avoid contact with eyes Can cause blindness (b) Contains alkali Keep out of reach of children Avoid contact with…

CAS
1310-65-2
EC
215-183-4
Max concentration Product type 17/10/2010
Entry
15c

CALCIUM HYDROXIDE

Calcium hydroxide

(a) Contains alkali Avoid contact with eyes Keep out of reach of children Can cause blindness (b) Contains alkali Keep out of reach of children Avoid contact with eyes

CAS
1305-62-0
EC
215-137-3
Max concentration Product type 17/10/2010
Entry
16

1-NAPHTHOL

1-Naphthol and its salts

Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. …

CAS
90-15-3
EC
201-969-4
Product type 14/05/2013
Entry
16

1-Naphthol

1- Naphthalenol

To be printed on the label: Hair colorants can cause severe allergic reactions.

CAS
90-15-3
EC
201-969-4
Product type 09/09/2013
Entry
164

ROSE KETONE-5

Rose ketone-5 (see note 16) 1-(2,4,4-Trimethyl-2-cycloehexen-1-yl)-2-buten-1-one
CAS
33673-71-1
EC
251-632-0
Max concentration 23/05/2013
Entry
166

TRANS-2-HEXENAL

trans-2-hexenal

(a) Oral products (b) Other products

CAS
6728-26-3
EC
229-778-1
Max concentration Product type 23/05/2013
Entry
169

PERILLALDEHYDE

p-Mentha-1,8-dien-7-al

(a) Oral products (b) Other products

CAS
2111-75-3
EC
218-302-8
Max concentration Product type 23/05/2013
Entry
17

SODIUM NITRITE

Sodium nitrite

Not to be used with secondary and/or tertiary amines or other substances forming nitrosamines

CAS
7632-00-0
EC
231-555-9
Max concentration Product type 17/10/2010
Entry
170

ISOBERGAMATE

Isobergamate; Menthadiene-7-methyl formate
CAS
68683-20-5
EC
272-066-0
Max concentration 23/05/2013
Entry
171

SCENTENAL

Methoxy dicyclopentadiene carboxaldehyde; Octahydro-5-methoxy-4,7-Methano-1H-indene-2-carboxaldehyde
CAS
86803-90-9
EC
—
Max concentration 23/05/2013
Entry
173

METHYL OCTINE CARBONATE

Methyl octine carbonate; Methyl non-2-ynoate

(a) Oral products (b) Others products

CAS
111-80-8
EC
203-909-2
Max concentration Product type 23/05/2013
Entry
174

AMYLVINYLCARBINYL ACETATE

Amylvinylcarbinyl acetate; 1-Octen-3-yl acetate

(a) Oral products (b) Other products

CAS
2442-10-6
EC
219-474-7
Max concentration Product type 23/05/2013
Entry
175

3-Propylidenephthalide

3-Propylidene-1(3H)- isobenzofuranone; 3-Propylidenephthalide

(a) The presence of the substance shall be indicated in the list of ingredients referred to in Article 19(1), point (g), when its concentration exceeds: — 0,001 % in leave-on products — 0,01 % in rinse-off products.

CAS
17369-59-4
EC
241-402-8
Max concentration Product type 11/09/2023
Entry
176

ISOCYCLOGERANIOL

Isocyclogeraniol; 2,4,6-Trimethyl-3-cyclohexene-1-methanol
CAS
68527-77-5
EC
271-282-2
Max concentration 23/05/2013
Entry
177

2-Hexylidene cyclopentanone

(a) Oral products (b) Other products

CAS
17373-89-6
EC
241-411-7
Max concentration Product type 23/05/2013
Entry
178

METHYLHEPTADIENONE

Methyl heptadienone; 6-Methyl-3,5-heptadien-2-one

(a) Oral products (b) Other products

CAS
1604-28-0
EC
216-507-7
Max concentration Product type 23/05/2013
Entry
179

P-METHYLHYDROCINNAMIC ALDEHYDE

p-methylhydrocinnamic aldehyde; Cresylpropionaldehyde; p-Methyldihydrocinnamaldehyde
CAS
5406-12-2
EC
226-460-4
Max concentration 23/05/2013
Entry
18

NITROMETHANE

Nitromethane

Rust inhibitor

CAS
75-52-5
EC
200-876-6
Max concentration Product type 17/10/2010
Entry
183

OPOPONAX OIL

Commiphora erythrea engler var. glabrescens engler gum extract and oil
CAS
93686-00-1
EC
297-649-7
Max concentration 24/05/2013
Entry
185

TOLUENE

Toluene

Keep out of reach of children. To be used by adults only

CAS
108-88-3
EC
203-625-9
Max concentration Product type CMR 24/05/2013
Entry
186

DIETHYLENE GLYCOL

2,2'-oxydiethanol Diethylene glycol (DEG)

As traces in ingredients

CAS
111-46-6
EC
203-872-2
Max concentration Product type 24/05/2013
Entry
187

BUTOXYDIGLYCOL

Diethylene glycol monobutyl ether (DEGBE)

No use in aerosol dispensers (sprays)

CAS
112-34-5
EC
203-961-6
Max concentration Product type 24/05/2013
Entry
188

BUTOXYETHANOL

Ethylene glycol monobutyl ether (EGBE)

(a) (b) No use in aerosol dispensers (sprays)

CAS
111-76-2
EC
203-905-0
Max concentration Product type 24/05/2013
Entry
189

CI 19140 / ACID YELLOW 23

Trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate and aluminium lake (see note 17). CI 19140

Hair dye substance in non-oxidative hair dye products

CAS
1934-21-0 - 12225-21-7
EC
217-699-5 - 235-428-9
Max concentration Product type 13/08/2020
Entry
190

ACID BLUE 9

Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); …

Hair dye substance in non-oxidative hair dye products

CAS
3844-45-9 - 2650-18-2 - 68921-42-6
EC
223-339-8 - 220-168-0 - 272-939-6
Max concentration Product type 12/08/2020
Entry
191

CURRY RED

Disodium 6-hydroxy-5-[(2-methoxy-4-sulphonato-m-tolyl)azo]naphthalene-2-sulphonate (15); CI 16035. (see note 17)

Hair dye substance in non-oxidative hair dye products

CAS
25956-17-6
EC
247-368-0
Max concentration Product type 14/08/2020
Entry
192

ACID RED 18

Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and aluminium lake (Cl 16255) (see note 17).

Hair dye substance in non-oxidative hair dye products

CAS
2611-82-7 - 12227-64-4
EC
220-036-2 - 235-438-3
Max concentration Product type 14/08/2020
Entry
193

ACID RED 52

Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt; CI 45100 (see note 17)

a) To be printed on the label: The mixing ratio. “ Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black…

CAS
3520-42-1
EC
222-529-8
Max concentration Product type 05/06/2014
Entry
194

GLYOXAL

Glyoxal
CAS
107-22-2
EC
203-474-9
Max concentration CMR 10/02/2015
Entry
195

ACID BLUE 62

Sodium 1-amino-4-(cyclohexylamino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate; CI 62045 (see note 17)

- Do not use with nitrosating systems - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers

CAS
4368-56-3
EC
224-460-9
Max concentration Product type 14/08/2020
Entry
196

HC BLUE NO. 11

1-[(2'-Methoxyethyl)amino]-2-nitro-4-[di-(2'-hydroxyethyl)amino]benzene (see note 17)

- Do not use with nitrosating systems - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers

CAS
23920-15-2
EC
459-980-7
Max concentration Product type 29/05/2013
Entry
196

Lippia citriodora absolute

Verbena absolute

The presence of the substance shall be indicated in the list of ingredients referred to in Article 19(1), point (g), when its concentration exceeds: — 0,001 % in leave-on products — 0,01 % in rinse-off products. (For us…

CAS
8024-12-2/ 85116-63-8
EC
-/ 285-515-0
Max concentration 03/10/2023
Entry
197

ETHYL LAUROYL ARGINATE HCL

Ethyl Lauroyl Arginate HCl

For purposes other than inhibiting the development of micro- organisms in the product. This purpose has to be apparent from the presentation of the product

CAS
60372-77-2
EC
434-630-6
Max concentration Product type 10/06/2015
Entry
198

N,N-bis(2-Hydroxyethyl)- p-Phenylenediamine Sulfate

2,2′-[(4-Aminophenyl))imino]bis (ethanol) sulphate; N,N-bis(2-Hydroxyethyl)- p-Phenylenediamine Sulfate

To be printed on the label: Hair colorants can cause severe allergic reactions

CAS
54381-16-
EC
259-134-5
Product type 09/09/2013
Entry
199

4- CHLORORESORCINOL

1,3-Benzenediol, 4-Chlororesorcinol

To be printed on the label: Hair colorants can cause severe allergic reactions.

CAS
95-88-5
EC
202-462-0
Product type 09/09/2013

About this annex

Annex III covers substances that cosmetic products must not contain except under specific restrictions. These records often include warnings, conditions of use and concentration limits.

This section is especially useful for reviewing restricted substances, warning labels and product-type specific usage notes.