PHENYLBENZIMIDAZOLE SULFONIC ACID
PHENYLBENZIMIDAZOLE SULFONIC ACID is a cosmetic ingredient classified as Light Stabilizer. Also known as CAS 27503-81-7. It is regulated in 22 markets including UAE, Armenia, Bahrain.
Also Known As
- CAS Number
- 27503-81-7
Market Overview — 29 Markets
Detailed Regulations
Europe2 regulations
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8%(as acid)
Source: EC 1223/2009 Annex VI
- Chemical name
- 2-Phenylbenzimidazole-5-sulfonic acid and its potassium, sodium and triethanolamine salts/Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8 %(as acid)
- Conditions of use
- Max: 8 %(as acid)
Source: UK retained EC 1223/2009 Annex VI
Americas1 regulation
- Chemical name
- Ácido 2 - fenilbenzimidazol - 5 - sulfônico e seus sais de potássio, sódio e trietanolamina PHENYLBENZIMIDAZOLE SULFONIC ACID (& SODIUM, POTASSIUM ,TEA SALTS )
- Max concentration
- 8% (expresso como ácido)
Source: ANVISA RDC 600
East Asia & Oceania2 regulations
- Chemical name
- Phenylbenzimidazole Sulfonic Acid
- Conditions of use
- * 배합한도 : 4%
Source: MFDS Korea Cosmetics Regulation
- Chemical name
- Phenylbenzimidazole sulfonic acid
- Max concentration
- 3.0%
- Product type
- Rinse-off (cosmetics washed away after use)
Source: MHLW Standards for Cosmetics (Notification No.331 of 2000)
ASEAN6 regulations
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts
- CAS
- 27503-81-7
- Max concentration
- 8% expressed as acid
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts
- CAS
- 27503-81-7
- Max concentration
- 8% expressed as acid
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts
- CAS
- 27503-81-7
- Max concentration
- 8% expressed as acid
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts
- CAS
- 27503-81-7
- Max concentration
- 8% expressed as acid
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts
- CAS
- 27503-81-7
- Max concentration
- 8% expressed as acid
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts
- CAS
- 27503-81-7
- Max concentration
- 8% expressed as acid
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
GCC6 regulations
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8%(as acid)
Source: GSO 1943:2024 (based on EU 1223/2009 VI)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8%(as acid)
Source: GSO 1943:2024 (based on EU 1223/2009 VI)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8%(as acid)
Source: GSO 1943:2024 (based on EU 1223/2009 VI)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8%(as acid)
Source: GSO 1943:2024 (based on EU 1223/2009 VI)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8%(as acid)
Source: GSO 1943:2024 (based on EU 1223/2009 VI)
- Chemical name
- 2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- CAS
- 27503-81-7
- Max concentration
- 8%(as acid)
Source: GSO 1943:2024 (based on EU 1223/2009 VI)
EAEU5 regulations
- Chemical name
- 2-Фенилбензимидазол-5-сульфоновая кислота и ее калиевая, натриевая и триэтаноламиновая соли/Энсулизол (2-Phenylbenzimidazole-5-sul-fonic acid and its potassium, sodium and triethanolamine salts/Ensulizole)
- CAS
- 27503-81-7
- Max concentration
- 8 процентов (в пересчете на кислоту)
Source: TR CU 009/2011 Annex 5 (UV Filters) (Ref 6)
- Chemical name
- 2-Фенилбензимидазол-5-сульфоновая кислота и ее калиевая, натриевая и триэтаноламиновая соли/Энсулизол (2-Phenylbenzimidazole-5-sul-fonic acid and its potassium, sodium and triethanolamine salts/Ensulizole)
- CAS
- 27503-81-7
- Max concentration
- 8 процентов (в пересчете на кислоту)
Source: TR CU 009/2011 Annex 5 (UV Filters) (Ref 6)
- Chemical name
- 2-Фенилбензимидазол-5-сульфоновая кислота и ее калиевая, натриевая и триэтаноламиновая соли/Энсулизол (2-Phenylbenzimidazole-5-sul-fonic acid and its potassium, sodium and triethanolamine salts/Ensulizole)
- CAS
- 27503-81-7
- Max concentration
- 8 процентов (в пересчете на кислоту)
Source: TR CU 009/2011 Annex 5 (UV Filters) (Ref 6)
- Chemical name
- 2-Фенилбензимидазол-5-сульфоновая кислота и ее калиевая, натриевая и триэтаноламиновая соли/Энсулизол (2-Phenylbenzimidazole-5-sul-fonic acid and its potassium, sodium and triethanolamine salts/Ensulizole)
- CAS
- 27503-81-7
- Max concentration
- 8 процентов (в пересчете на кислоту)
Source: TR CU 009/2011 Annex 5 (UV Filters) (Ref 6)
- Chemical name
- 2-Фенилбензимидазол-5-сульфоновая кислота и ее калиевая, натриевая и триэтаноламиновая соли/Энсулизол (2-Phenylbenzimidazole-5-sul-fonic acid and its potassium, sodium and triethanolamine salts/Ensulizole)
- CAS
- 27503-81-7
- Max concentration
- 8 процентов (в пересчете на кислоту)
Source: TR CU 009/2011 Annex 5 (UV Filters) (Ref 6)
Frequently Asked Questions
Is PHENYLBENZIMIDAZOLE SULFONIC ACID banned in any country?
PHENYLBENZIMIDAZOLE SULFONIC ACID is not banned in any of the 26 markets tracked by Formpli. However, it may be subject to restrictions or conditions of use in some markets.
What are the restrictions on PHENYLBENZIMIDAZOLE SULFONIC ACID in cosmetics?
PHENYLBENZIMIDAZOLE SULFONIC ACID is restricted or has conditions of use in UAE, Armenia, Bahrain, Brazil, Belarus, European Union, Indonesia, Japan, Kyrgyzstan, South Korea, Kuwait, Kazakhstan, Malaysia, Oman, Philippines, Qatar, Russia, Saudi Arabia, Singapore, Thailand, United Kingdom, Vietnam. Restrictions may include maximum concentration limits, product type limitations, or mandatory labeling requirements. See the detailed regulations above for specifics.
Can I use PHENYLBENZIMIDAZOLE SULFONIC ACID in cosmetics?
PHENYLBENZIMIDAZOLE SULFONIC ACID is regulated in 22 markets. It has restrictions in UAE, Armenia, Bahrain, Brazil, Belarus, European Union, Indonesia, Japan, Kyrgyzstan, South Korea, Kuwait, Kazakhstan, Malaysia, Oman, Philippines, Qatar, Russia, Saudi Arabia, Singapore, Thailand, United Kingdom, Vietnam. Use Formpli's free screening tool to check your full ingredient list against all 26 markets at once.
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Check Ingredients FreeThis 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.