THIMEROSAL

BannedCAS 54-64-815 regulations across 15 markets

THIMEROSAL is a cosmetic ingredient classified as Preservative. Also known as CAS 54-64-8. It is regulated in 15 markets including UAE, Armenia, Bahrain.

Also Known As

CAS Number
54-64-8

Market Overview — 29 Markets

European Union1
United Kingdom1
United States
California
Maryland
Washington
Canada1
Brazil
South Korea
Japan
Taiwan1
Australia
Singapore
Malaysia
Thailand
Indonesia
Vietnam
Philippines
UAE1
Saudi Arabia1
Qatar1
Oman1
Kuwait1
Bahrain1
Russia1
Belarus1
Kazakhstan1
Armenia1
Kyrgyzstan1

Detailed Regulations

Europe2 regulations
European UnionRestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007%
Product type
Eye products
Conditions of use
Contains Thiomersal

Source: EC 1223/2009 Annex V

United KingdomRestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0,007 % (of Hg)If mixed with other mercurial compounds authorised by this Regulation, the maximum concentration of Hg remains fixed at 0,007 %
Product type
Eye products
Conditions of use
Max: 0,007 % (of Hg)If mixed with other mercurial compounds authorised by this Regulation, the maximum concentration of Hg remains fixed at 0,007 % Contains Thiomersal

Source: UK retained EC 1223/2009 Annex V

Americas1 regulation
CanadaBannedAnnex Table 1 (Prohibited)
Chemical name
Mercury and its compounds
CAS
54-64-8
Conditions of use
Prohibited in cosmetics

Source: Health Canada Cosmetic Ingredient Hotlist

East Asia & Oceania1 regulation
TaiwanRestrictedAnnex Preservatives List #44
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007 % (以Hg計)
Product type
Eye products
Conditions of use
When mixed with other mercurial compounds authorised by Regulation, the maximum concentration of Hg remains fixed at 0.007%
Other conditions
Contains Thiomersal

Source: TFDA Cosmetics Regulations

ASEANNo restrictions

No specific restrictions for THIMEROSAL in Singapore, Malaysia, Thailand, Indonesia, Vietnam, Philippines.

GCC6 regulations
UAERestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007%
Product type
Eye products
Conditions of use
Contains Thiomersal

Source: GSO 1943:2024 (based on EU 1223/2009 V)

Saudi ArabiaRestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007%
Product type
Eye products
Conditions of use
Contains Thiomersal

Source: GSO 1943:2024 (based on EU 1223/2009 V)

QatarRestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007%
Product type
Eye products
Conditions of use
Contains Thiomersal

Source: GSO 1943:2024 (based on EU 1223/2009 V)

OmanRestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007%
Product type
Eye products
Conditions of use
Contains Thiomersal

Source: GSO 1943:2024 (based on EU 1223/2009 V)

KuwaitRestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007%
Product type
Eye products
Conditions of use
Contains Thiomersal

Source: GSO 1943:2024 (based on EU 1223/2009 V)

BahrainRestrictedAnnex V #16
Chemical name
Thiomersal
CAS
54-64-8
Max concentration
0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007%
Product type
Eye products
Conditions of use
Contains Thiomersal

Source: GSO 1943:2024 (based on EU 1223/2009 V)

EAEU5 regulations
RussiaRestrictedAnnex 4 #16
Chemical name
Тиомерсаль (INN) (Thiomersal (INN))
CAS
54-64-8
Max concentration
0,007 процента (Hg). В смеси с ртутьсодержащими компонентами, разрешенными настоящим законом, максимальная концентрация ртути не более 0,007 процента
Product type
Продукция, предназначенная для нанесения в области глаз
Conditions of use
содержит тиомерсаль

Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 16)

BelarusRestrictedAnnex 4 #16
Chemical name
Тиомерсаль (INN) (Thiomersal (INN))
CAS
54-64-8
Max concentration
0,007 процента (Hg). В смеси с ртутьсодержащими компонентами, разрешенными настоящим законом, максимальная концентрация ртути не более 0,007 процента
Product type
Продукция, предназначенная для нанесения в области глаз
Conditions of use
содержит тиомерсаль

Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 16)

KazakhstanRestrictedAnnex 4 #16
Chemical name
Тиомерсаль (INN) (Thiomersal (INN))
CAS
54-64-8
Max concentration
0,007 процента (Hg). В смеси с ртутьсодержащими компонентами, разрешенными настоящим законом, максимальная концентрация ртути не более 0,007 процента
Product type
Продукция, предназначенная для нанесения в области глаз
Conditions of use
содержит тиомерсаль

Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 16)

ArmeniaRestrictedAnnex 4 #16
Chemical name
Тиомерсаль (INN) (Thiomersal (INN))
CAS
54-64-8
Max concentration
0,007 процента (Hg). В смеси с ртутьсодержащими компонентами, разрешенными настоящим законом, максимальная концентрация ртути не более 0,007 процента
Product type
Продукция, предназначенная для нанесения в области глаз
Conditions of use
содержит тиомерсаль

Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 16)

KyrgyzstanRestrictedAnnex 4 #16
Chemical name
Тиомерсаль (INN) (Thiomersal (INN))
CAS
54-64-8
Max concentration
0,007 процента (Hg). В смеси с ртутьсодержащими компонентами, разрешенными настоящим законом, максимальная концентрация ртути не более 0,007 процента
Product type
Продукция, предназначенная для нанесения в области глаз
Conditions of use
содержит тиомерсаль

Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 16)

Frequently Asked Questions

Is THIMEROSAL banned in any country?

Yes, THIMEROSAL is banned in Canada. Always check current regulations before formulating products for these markets.

What are the restrictions on THIMEROSAL in cosmetics?

THIMEROSAL is restricted or has conditions of use in UAE, Armenia, Bahrain, Belarus, European Union, Kyrgyzstan, Kuwait, Kazakhstan, Oman, Qatar, Russia, Saudi Arabia, Taiwan, United Kingdom. Restrictions may include maximum concentration limits, product type limitations, or mandatory labeling requirements. See the detailed regulations above for specifics.

Can I use THIMEROSAL in cosmetics?

THIMEROSAL is regulated in 15 markets. It is banned in Canada. It has restrictions in UAE, Armenia, Bahrain, Belarus, European Union, Kyrgyzstan, Kuwait, Kazakhstan, Oman, Qatar, Russia, Saudi Arabia, Taiwan, United Kingdom. Use Formpli's free screening tool to check your full ingredient list against all 26 markets at once.

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This information is for reference only and does not constitute legal or regulatory advice. Regulations change — always verify with official sources and consult a regulatory specialist before exporting cosmetic products. Data sourced from EU COSING, US FDA, Health Canada, MHLW Japan, MFDS Korea, ASEAN ACD, GCC SFDA, TGA Australia, ANVISA Brazil, EAEU TR CU, and Taiwan TFDA.