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Annex V Source last update: 02/03/2026

Allowed cosmetic preservatives

LIST OF PRESERVATIVES ALLOWED IN COSMETIC PRODUCTS

Records on this page set
57
Current page
1
Total pages
2

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

57 total
Entry
1

BENZOIC ACID; SODIUM BENZOATE

Benzoic acid and its sodium salt

a) Rinse-off products, except oral care products b) Oral care products c) Leave-on products

CAS
65-85-0 / 532-32-1
EC
200-618-2 / 208-534-8
Max concentration Product type 25/10/2010
Entry
10

-

Moved or deleted
CAS
-
EC
-
03/10/2016
Entry
11

CHLOROBUTANOL

Chlorobutanol

Contains Chlorobutanol

CAS
57-15-8
EC
200-317-6
Max concentration 16/10/2010
Entry
13

Dehydroacetic acid / SODIUM DEHYDROACETATE

3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts

Not to be used in aerosol dispensers (sprays)

CAS
520-45-6 / 4418-26-2 / 16807-48-0
EC
208-293-9 / 224-580-1 / -
Max concentration 16/10/2010
Entry
15

Dibromohexamidine isethionate

3,3'-Dibromo-4,4'-hexamethylenedioxydibenzamidine and its salts (including isethionate)
CAS
93856-83-8
EC
299-116-4
Max concentration 16/10/2010
Entry
16

THIMEROSAL

Thiomersal

Contains Thiomersal

CAS
54-64-8
EC
200-210-4
Max concentration Product type 16/10/2010
Entry
19

Hexetidine

5-Pyrimidinamine, 1,3-bis(2-ethylhexyl)hexahydro-5-methyl-
CAS
141-94-6
EC
205-513-5
Max concentration 16/10/2010
Entry
1a
CAS
1863-63-4 /2090-05-3 / 582-25-2 / 553-70-8 / 4337-66-0 / 93-58-3 / 93-89-0 / 2315-68-6 / 136-60-7 / 1205-50-3 / 939-48-0 / 93-99-2
EC
217-468-9 / 218-235-4 / 209-481-3 / 209-045-2 / 224-387-2 / 202-259-7 / 202-284-3 / 219-020-8 / 205-252-7 / 204-401-3 / 213-361-6 / 202-293-2
Max concentration 16/10/2010
Entry
20

5-BROMO-5-NITRO-1,3-DIOXANE

5-Bromo-5-nitro-1,3-dioxane

Avoid formation of nitrosamines

CAS
30007-47-7
EC
250-001-7
Max concentration Product type 02/08/2021
Entry
23

Triclocarban

1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea

For toothpaste containing Triclocarban the following labelling is obligatory: ‘Not to be used for children under 6 years of age’.

CAS
101-20-2
EC
202-924-1
Max concentration Product type 04/04/2024
Entry
24

P-CHLORO-M-CRESOL

Chlorocresol

Not to be used in products applied on mucous membranes

CAS
59-50-7
EC
200-431-6
Max concentration Product type 25/10/2010
Entry
25

Triclosan

5-Chloro-2-(2,4-dichlorophenoxy)phenol

For toothpaste containing Triclosan the following labelling is obligatory: ‘Not to be used for children under 3 years of age’.

CAS
3380-34-5
EC
222-182-2
Max concentration Product type 04/04/2024
Entry
26

CHLOROXYLENOL

Chloroxylenol
CAS
88-04-0 / 1321-23-9
EC
201-793-8 / 215-316-6
Max concentration 16/10/2010
Entry
27

IMIDAZOLIDINYL UREA

N,N''-Methylenebis[N'-[3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl]urea]
CAS
39236-46-9
EC
254-372-6
Max concentration 02/08/2021
Entry
28

POLYAMINOPROPYL BIGUANIDE

Polyhexamethylene biguanide hydrochloride

Not to be used in applications that may lead to exposure of the end-user's lungs by inhalation

CAS
32289-58-0 [1]/ 27083-27-8 [2]/ 28757-47-3 [3]/ 133029-32-0 [4]
EC
608-723-9 [1]/ 608-042-7 [2]
Max concentration CMR 28/07/2020
Entry
29

PHENOXYETHANOL

2-Phenoxyethanol
CAS
122-99-6
EC
204-589-7
Max concentration 28/07/2020
Entry
3

SALICYLIC ACID, CALCIUM SALICYLATE, MAGNESIUM SALICYLATE, MEA- SALICYLATE, SODIUM SALICYLATE, POTASSIUM SALICYLATE, TEA- SALICYLATE

Salicylic acid and its salts

Salicylic acid: Not to be used for children under 3 years of age** **Solely for products which might be used for children under 3 years of age. Salicylic acid salts: Not to be used for children under 3 years of age*** …

CAS
69-72-7[1]/ 824-35-1[2]/ 18917-89-0[3]/ 59866-70-5[4]/ 54-21-7[5]/ 578-36-9[6]/ 2174-16-5[7]
EC
200-712-3[1]/ 212-525-4[2]/ 242-669-3[3]/ 261-963-2[4]/ 200-198-0[5]/ 209-421-6[6]/ 218-531-3[7]
Max concentration 27/07/2020
Entry
30

METHENAMINE

Methenamine
CAS
100-97-0
EC
202-905-8
Max concentration 02/08/2021
Entry
32

CLIMBAZOLE

1-(4-Chlorophenoxy)-1-(imidazol-1-yl)-3,3-dimethylbutan-2-one

(a) Hair lotions (b) Face creams (c) Foot care products (d) Rinse-off shampoo

CAS
38083-17-9
EC
253-775-4
Max concentration Product type 28/07/2020
Entry
33

DMDM HYDANTOIN

1,3-Bis(hydroxymethyl)-5,5-dimethylimidazolidine-2,4-dione
CAS
6440-58-0
EC
229-222-8
Max concentration 02/08/2021
Entry
34

BENZYL ALCOHOL

Benzyl alcohol (7)
CAS
100-51-6
EC
202-859-9
Max concentration 26/07/2013
Entry
36

-

Moved or deleted
CAS
-
EC
-
16/10/2010
Entry
37

BROMOCHLOROPHENE

2,2'-Methylenebis(6-bromo-4-chlorophenol)
CAS
15435-29-7
EC
239-446-8
Max concentration 25/10/2010
Entry
38

O-CYMEN-5-OL

4-Isopropyl-m-cresol
CAS
3228-02-2
EC
221-761-7
Max concentration 16/10/2010
Entry
39

METHYLCHLOROISOTHIAZOLINONE AND METHYLISOTHIAZOLINONE

Mixture of 5-Chloro-2-methyl-isothiazol-3(2H)-one and 2-Methylisothiazol-3(2H)-one with magnesium chloride and magnesium nitrate

Rinse-off

CAS
26172-55-4, 2682-20-4, 55965-84-9
EC
247-500-7, 220-239-6
Max concentration Product type 28/09/2022
Entry
43

PHENOXYISOPROPANOL

1-Phenoxypropan-2-ol (8)

Only for rinse-off products

CAS
770-35-4
EC
212-222-7
Max concentration Product type 09/11/2010
Entry
45

DIMETHYL OXAZOLIDINE

4,4-Dimethyl-1,3-oxazolidine

pH > 6

CAS
51200-87-4
EC
257-048-2
Max concentration 16/10/2010
Entry
46

DIAZOLIDINYL UREA

N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
CAS
78491-02-8
EC
278-928-2
Max concentration 02/08/2021
Entry
48

GLUTARAL

Glutaraldehyde (Pentane-1,5-dial)

Contains glutaral (9)

CAS
111-30-8
EC
203-856-5
Max concentration 25/10/2010
Entry
49

7-ETHYLBICYCLOOXAZOLIDINE

5-Ethyl-3,7-dioxa-1-azabicyclo[3.3.0] octane

Not to be used in oral products and in products applied on mucous membranes

CAS
7747-35-5
EC
231-810-4
Max concentration 02/08/2021
Entry
50

chlorphenesin

3-(p-Chlorophenoxy)-propane-1,2-diol
CAS
104-29-0
EC
203-192-6
Max concentration 16/10/2010
Entry
51

SODIUM HYDROXYMETHYLGLYCINATE

Sodium hydroxymethylamino acetate

Not to be used if the maximum theoretical concentration of releasable formaldehyde, irrespective of the source, if the mixture as placed on the market is ≥ 0,1 % w/w

CAS
70161-44-3
EC
274-357-8
Max concentration 04/11/2021
Entry
52

SILVER CHLORIDE

Silver chloride deposited on titanium dioxide

20% AgCl (w/w) on TiO2. Not to be used in products for children under 3 years of age, in oral products and in eye and lip products

CAS
7783-90-6
EC
232-033-3
Max concentration 16/10/2010
Entry
53

Benzethonium Chloride

Benzenemethanaminium, N,N-dimethyl-N-[2-[2-[4-(1,1,3,3,-tetramethylbutyl)phenoxy]ethoxy]ethyl]-, chloride

a) Rinse-off products b) Leave-on products other than oral products

CAS
121-54-0
EC
204-479-9
Max concentration Product type 16/10/2010
Entry
54

BENZALKONIUM CHLORIDE / BENZALKONIUM BROMIDE / BENZALKONIUM SACCHARINATE

Benzalkonium chloride, bromide and saccharinate (10)

Avoid contact with eyes

CAS
8001-54-5/ 63449-41-2 / 91080-29-4 / 68989-01-5 / 68424-85-1 / 68391-01-5 / 61789-71-7 / 85409-22-9
EC
264-151-6 / 293-522-5 / 273-545-7 / 270-325-2 / 269-919-4 / 263-080-8 / 287-089-1
Max concentration 16/10/2010
Entry
55

BENZYLHEMIFORMAL

Methanol, (phenylmethoxy)-

Rinse-off products

CAS
14548-60-8
EC
238-588-8
Max concentration Product type 02/08/2021
Entry
56

IODOPROPYNYL BUTYLCARBAMATE

3-Iodo-2-propynylbutylcarbamate

a) Not to be used for children under three years of age (11) b) and c) Not to be used for children under three years of age (12)

CAS
55406-53-6
EC
259-627-5
Max concentration Product type 16/10/2010

About this annex

Annex V covers preservatives allowed in cosmetic products. These records are useful for reviewing ingredient usage, restrictions and related identifiers.

You can use this section to browse preservatives and compare their related warnings or conditions of use.