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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

Records on this page set
373
Current page
7
Total pages
8

Source and verification note

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.

Records

373 total
Entry
377

Alpha-Arbutin

4-Hydroxyphenyl-alpha-D-glucopyranoside

Hydroquinone levels shall remain as low as possible in formulations containing alpha-Arbutin and shall not be higher than the unavoidable trace level. From 1 February 2025 cosmetic products containing that substance an…

CAS
84380-01-8
EC
617-561-8
Max concentration Product type 04/04/2024
Entry
378

Arbutin

4-Hydroxyphenyl-beta-D-glucopyranoside

Hydroquinone levels shall remain as low as possible in formulations containing alpha-Arbutin and shall not be higher than the unavoidable trace level. From 1 February 2025 cosmetic products containing that substance an…

CAS
497-76-7
EC
207-850-3
Max concentration Product type 04/04/2024
Entry
379

Silver

Silver (powder) [100 nm < particle diameter < 1 mm]

(a) Toothpaste (b) Mouthwash

CAS
7440-22-4
EC
231-131-3
Max concentration Product type 15/01/2026
Entry
380

Hexyl Salicylate

Hexyl 2-hydroxybenzoate

Not to be used in preparations for children under 3 years of age, with the exception of (d) “Toothpaste” and (f).

CAS
6259-76-3
EC
228-408-6
Max concentration Product type 15/01/2026
Entry
39

OCTADECENYLAMMONIUM FLUORIDE

Octadecenyl- Ammonium Fluoride

Contains octadecenyl-ammonium fluoride. For any toothpaste with compounds containing fluorine in a concentration of 0,1 to 0,15 % calculated as F unless it is already labelled as contra-indicated for children (e.g. “for…

CAS
36505-83-6
EC
Max concentration Product type 05/07/2023
Entry
4

AMMONIA

Ammonia

Above 2%: Contains ammonia

CAS
7664-41-7 / 1336-21-6
EC
231-635-3 / 215-647-6
Max concentration 17/10/2010
Entry
40

SODIUM FLUOROSILICATE

Sodium Fluorosilicate

Contains sodium fluorosilicate For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.15% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adult us…

CAS
16893-85-9
EC
240-934-8
Max concentration Product type 14/05/2013
Entry
41

POTASSIUM FLUOROSILICATE

Potassium Fluorosilicate

Contains potassium fluorosilicate For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.15% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adult…

CAS
16871-90-2
EC
240-896-2
Max concentration Product type 14/05/2013
Entry
42

Ammonium fluorosilicate

Contains ammonium fluorosilicate For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.15% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adult …

CAS
16919-19-0
EC
240-968-3
Max concentration Product type 14/05/2013
Entry
43

MAGNESIUM FLUOROSILICATE

Magnesium Fluorosilicate

Contains magnesium fluorosilicate For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.15% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adult…

CAS
16949-65-8
EC
241-022-2
Max concentration Product type 14/05/2013
Entry
44

DIMETHYLOL ETHYLENE THIOUREA

1,3-Bis(hydroxymethyl)imidazolidine-2-thione

Contains Dimethylol ethylene thiourea

CAS
15534-95-9
EC
239-579-1
Max concentration Product type 17/10/2010
Entry
45

BENZYL ALCOHOL

Benzyl Alcohol

For purposes other than inhibiting the development of microorganisms in the product. This purpose has to be apparent from the presentation of the product. The presence of the substance shall be indicated in the list of …

CAS
100-51-6
EC
202-859-9
Product type 03/10/2023
Entry
46

6-Methylcoumarin

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
92-48-8
EC
202-158-8
Max concentration Product type 11/09/2023
Entry
47

NICOMETHANOL HYDROFLUORIDE

Nicomethanol Hydrofluoride

Contains nicomethanol hydrofluoride For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.15% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adu…

CAS
62756-44-9
EC
Max concentration Product type 14/05/2013
Entry
48

SILVER NITRATE

Silver nitrate

Contains silver nitrate Rinse eyes immediately if product comes into contact with them

CAS
7761-88-8
EC
231-853-9
Max concentration Product type 17/10/2010
Entry
49

Selenium disulphide

Selenium sulfide

Contains selenium disulphide Avoid contact with eyes or damaged skin

CAS
7488-56-4
EC
231-303-8
Max concentration Product type 17/10/2010
Entry
5

Chloramine-T

Tosylchloramide sodium (INN)
CAS
127-65-1
EC
204-854-7
Max concentration 17/10/2010
Entry
51

OXYQUINOLINE SULFATE

bis(8-hydroxyquinolinium) sulphate

(a) Stabilizer for hydrogen peroxide in rinse-off hair products (b) Stabilizer for hydrogen peroxide in leave-on hair products

CAS
134-31-6
EC
205-137-1
Max concentration Product type 31/07/2020
Entry
52

METHYL ALCOHOL

Methanol

Denaturant for ethanol and isopropyl alcohol

CAS
67-56-1
EC
200-659-6
Max concentration Product type 17/10/2010
Entry
53

Etidronic acid

(1-Hydroxyethylidene)diphosphonic acid and its salts

(a) Hair product (b) Soap

CAS
2809-21-4
EC
220-552-8
Max concentration Product type 17/10/2010
Entry
54

1-Phenoxypropan-2-ol (8)

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
770-35-4
EC
212-222-7
Max concentration Product type 09/11/2010
Entry
56

MAGNESIUM FLUORIDE

Magnesium fluoride

Contains magnesium fluoride For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.15% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adult use o…

CAS
7783-40-6
EC
231-995-1
Max concentration Product type 14/05/2013
Entry
57

STRONTIUM CHLORIDE

Strontium chloride hexahydrate

Contains strontium chloride Frequent use by children is not advisable

CAS
10476-85-4
EC
233-971-6
Max concentration Product type 17/10/2010
Entry
58

STRONTIUM ACETATE

Strontium acetate hemihydrate

Contains strontium acetate Frequent use by children is not advisable

CAS
543-94-2
EC
208-854-8
Max concentration Product type 17/10/2010
Entry
59

TALC

Talc: Hydrated magnesium silicate

(a) Keep powder away from children's nose and mouth

CAS
14807-96-6
EC
238-877-9
Product type 22/10/2024
Entry
6

POTASSIUM CHLORATE / SODIUM CHLORATE

Chlorates of alkali metals

(a) Toothpaste (b) Other products

CAS
3811-04-9 / 7775-09-9
EC
223-289-7 / 231-887-4
Max concentration Product type 04/11/2010
Entry
60

Fatty acid dialkylamides and dialkanolamides

- Do not use with nitrosating systems - Maximum secondary amine content: 5% (applies to raw materials) - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers

CAS
EC
Max concentration 20/01/2023
Entry
61

Monoalkylamines, monoalkanolamines and their salts

- Do not use with nitrosating systems - Minimum purity: 99% - Maximum secondary amine content: 0.5% (applies to raw materials) - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers

CAS
EC
Max concentration 18/06/2019
Entry
62

Trialkylamines, trialkanolamines and their salts

(a) (b) - Do not use with nitrosating systems - Minimum purity: 99% - Maximum secondary amine content: 0.5% (applies to raw materials) - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers

CAS
EC
Max concentration Product type 17/10/2010
Entry
63

STRONTIUM HYDROXIDE

Strontium hydroxide

Keep out of reach of children Avoid contact with the eyes

CAS
18480-07-4
EC
242-367-1
Max concentration Product type 17/10/2010
Entry
64

Strontium peroxide

Avoid contact with eyes Rinse eyes immediately if product comes into contact with them For professional use only Wear suitable gloves

CAS
1314-18-7
EC
215-224-6
Max concentration Product type 17/10/2010
Entry
66

Polyacrylamides

(a) Maximum residual acrylamide content 0.1mg/kg (b) Maximum residual acrylamide content 0.5mg/kg

CAS
EC
Product type 17/10/2010
Entry
67

Amyl cinnamal

2-Benzylideneheptanal

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
122-40-7
EC
204-541-5
17/10/2010
Entry
69

Cinnamyl alcohol

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
104-54-1
EC
203-212-3
17/10/2010
Entry
70

Citral; Geranial; Neral

3,7-Dimethyl-2,6-octadienal; (E)-3,7-dimethylocta-2,6-dienal; (Z)-3,7-dimethylocta-2,6-dienal

The presence of the substance or substances shall be indicated as ‘Citral’ in the list of ingredients referred to in Article 19(1), point (g), when the concentration of the substance or substances exceeds: — 0,001 % in …

CAS
5392-40-5; 141-27-5; 106-26-3
EC
226-394-6; 205-476-5; 203-379-2
11/09/2023
Entry
71

Eugenol

Phenol, 2-methoxy-4-(2-propenyl)-

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
97-53-0
EC
202-589-1
17/10/2010
Entry
72

HYDROXYCITRONELLAL

Hydroxycitronellal

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

CAS
107-75-5
EC
203-518-7
Max concentration Product type 14/05/2013
Entry
73

ISOEUGENOL

Phenol, 2-methoxy-4-(1-propenyl); (E)-2-methoxy-4-(prop-1-enyl)phenol;(trans-Isoeugenol); (Z)-2-methoxy-4-(prop-1-enyl)phenol;(cis-Isoeugenol)

(a) (b) 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
97-54-1; 5932-68-3; 5912-86-7
EC
202-590-7; 227-678-2; 227-633-7
Max concentration Product type 11/09/2023
Entry
74

Amylcinnamyl alcohol

2-Pentyl-3-phenylprop-2-en-1-ol

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
101-85-9
EC
202-982-8
17/10/2010
Entry
75

Benzyl salicylate

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
118-58-1
EC
204-262-9
02/08/2024
Entry
76

Cinnamal

2-Propenal, 3-phenyl-

The presence of the substance must be indicated in the list of ingredients referred to in Article 6(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
104-55-2
EC
203-213-9
17/10/2010
Entry
77

Coumarin

2H-1-Benzopyran-2-one

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
91-64-5
EC
202-086-7
17/10/2010
Entry
78

Geraniol

2,6-Octadien-1-ol, 3,7-dimethyl-, (2E)-

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
106-24-1
EC
203-377-1
17/10/2010
Entry
80

ANISe ALCOHOL

4-Methoxybenzyl alcohol

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
105-13-5
EC
203-273-6
04/11/2010
Entry
81

Benzyl cinnamate

2-Propenoic acid, 3-phenyl-, phenylmethyl ester

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
103-41-3
EC
203-109-3
17/10/2010
Entry
82

Farnesol

2,6,10-Dodecatrien-1-ol, 3,7,11-trimethyl-

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

CAS
4602-84-0
EC
225-004-1
17/10/2010

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.