DIAZOLIDINYL UREA
DIAZOLIDINYL UREA is a cosmetic ingredient classified as Preservative. Also known as CAS 78491-02-8. It is regulated in 19 markets including UAE, Bahrain, Brazil.
Also Known As
- CAS Number
- 78491-02-8
Market Overview — 29 Markets
Detailed Regulations
Europe2 regulations
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: EC 1223/2009 Annex V
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl) urea
- CAS
- 78491-02-8
- Max concentration
- 0,5 %
- Conditions of use
- Max: 0,5 %
Source: UK retained EC 1223/2009 Annex V
Americas2 regulations
- Chemical name
- Diazolidinyl Urea
- CAS
- 78491-02-8
- Conditions of use
- Banned effective 2027-01-01 (HB 1047 Phase 2 - formaldehyde releasers)
Source: WA HB 1047 (Toxic-Free Cosmetics Act)
- Chemical name
- N-(hidroximetil)-N- (dihidroximetil-1,3- dioxo-2,5-imidazoli dinil-4)-N’(hidroxim etil)urea
- CAS
- 78491-02-8
- Max concentration
- 0,5%
Source: ANVISA RDC 528
East Asia & Oceania4 regulations
- Chemical name
- Diazolidinyl Urea
- Conditions of use
- * 배합한도 : 0.50%
Source: MFDS Korea Cosmetics Regulation
- Chemical name
- Diazolidinyl Urea
- Conditions of use
- * 배합한도 : 0.50%
Source: MFDS Korea Cosmetics Regulation
- Chemical name
- Diazolidinyl Urea
- Max concentration
- 0.30%
- Product type
- Rinse-off (cosmetics washed away after use)
Source: MHLW Standards for Cosmetics (Notification No.331 of 2000)
- Chemical name
- N-(Hydroxymethyl)-N- (dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl) urea
- CAS
- 78491-02-8
- Max concentration
- 0.5 %
- Conditions of use
- When used as preservatives in cosmetic products, the total amount of released free formaldehyde should not exceed 1000 ppm
Source: TFDA Cosmetics Regulations
ASEAN6 regulations
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3- dioxo-2,5-imidazolinidyl-4)-N'-(hydroxymethyl) urea)
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3- dioxo-2,5-imidazolinidyl-4)-N'-(hydroxymethyl) urea)
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3- dioxo-2,5-imidazolinidyl-4)-N'-(hydroxymethyl) urea)
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3- dioxo-2,5-imidazolinidyl-4)-N'-(hydroxymethyl) urea)
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3- dioxo-2,5-imidazolinidyl-4)-N'-(hydroxymethyl) urea)
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3- dioxo-2,5-imidazolinidyl-4)-N'-(hydroxymethyl) urea)
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
GCC6 regulations
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- CAS
- 78491-02-8
- Max concentration
- 0.5%
Source: GSO 1943:2024 (based on EU 1223/2009 V)
EAEUNo restrictions
No specific restrictions for DIAZOLIDINYL UREA in Russia, Belarus, Kazakhstan, Armenia, Kyrgyzstan.
Frequently Asked Questions
Is DIAZOLIDINYL UREA banned in any country?
Yes, DIAZOLIDINYL UREA is banned in Washington. Always check current regulations before formulating products for these markets.
What are the restrictions on DIAZOLIDINYL UREA in cosmetics?
DIAZOLIDINYL UREA is restricted or has conditions of use in UAE, Bahrain, Brazil, European Union, Indonesia, Japan, South Korea, Kuwait, Malaysia, Oman, Philippines, Qatar, Saudi Arabia, Singapore, Thailand, Taiwan, 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 DIAZOLIDINYL UREA in cosmetics?
DIAZOLIDINYL UREA is regulated in 19 markets. It is banned in Washington. It has restrictions in UAE, Bahrain, Brazil, European Union, Indonesia, Japan, South Korea, Kuwait, Malaysia, Oman, Philippines, Qatar, Saudi Arabia, Singapore, Thailand, Taiwan, 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.