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HOW WE DETERMINE SCORES Learn more About EWG VERIFIED®

Data: Limited

Diazolidinyl Urea

IMAGE SOURCE: PubChem

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Other Concerns

Use restrictions (low) and Contamination concerns (high)

SYNONYMS

● S5292
● AKOS016010254
● CHEBI:136014
● DTXSID0029559
● CCG-267223
● N-[1,3-BIS(HYDROXYMETHYL)-2,5-DIOXO-4-IMIDAZOLIDINYL]-N,N INVERTED EXCLAMATION MARK -BIS(HYDROXYMETHYL)UREA
● TOX21_303365
● SBB003028
● CS-W010066
● TOX21_202068

Unacceptable

Unacceptable: EWG VERIFIED products cannot contain this ingredient

Diazolidinyl urea is an antimicrobial preservative that acts as a formaldehyde releaser in cosmetics and personal care products.

Common concerns

See how this product scores for common concerns.

  • LOW
    Cancer
  • HIGH
    Allergies & Immunotoxicity
  • LOW
    Developmental and Reproductive Toxicity
  • LOW
    Use Restrictions

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

Expand content Collapse content
conditioner142 products
muscle/joint soreness4 products
anti-aging13 products
moisturizer137 products
facial cleanser26 products
detangler9 products
styling gel/lotion97 products
hair spray19 products
serums & essences15 products
foot moisturizer16 products
around-eye cream11 products
facial moisturizer/treatment47 products
styling mousse/foam35 products
shampoo107 products
mask28 products
Hair Styling Gel5 products
eye makeup remover2 products
makeup remover3 products
concealer19 products
after sun product37 products
hair-loss treatment3 products
hair treatment/serum56 products
toners/astringents12 products
hand cream26 products
exfoliant/scrub22 products
foundation13 products
BB cream4 products
body firming lotion27 products
shaving cream11 products
skin fading/lightener3 products
hair styling aid95 products
hair relaxer2 products
eye liner3 products
blush9 products
bronzer/highlighter4 products
sunless tanning2 products
body wash/cleanser23 products
eye shadow5 products
after shave7 products
Other Hair Care Preparations1 products
Bath and Body Wipes1 products
damaged skin treatment3 products
baby sunscreen3 products
recreational sunscreen3 products
fragrance for women2 products
foot cleansing1 products
lipstick20 products
hair color and bleaching5 products
brow liner2 products
makeup primer5 products
bubble bath1 products
nail polish1 products
CC cream2 products
glitter3 products
other eye makeup1 products
facial powder5 products
mascara4 products
daily use with SPF2 products
liquid hand soap7 products
body spray15 products
setting powder/spray2 products
tanning oil2 products
hand sanitizer2 products
nail glue1 products
Fragrance Lotion or Cream1 products
baby shampoo3 products
beard cleanser1 products
beard care1 products
lip gloss1 products
baby soap1 products
shaving cream (men's)1 products
baby lotion1 products
Exfoliants1 products

Contamination concerns

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Chemical
FORMALDEHYDE

Use restrictions

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CONCERN REFERENCE
Determined safe for use in cosmetics, subject to concentration or use limitations - Opinion Concerning a Clarification on the Formaldehyde and para-Formaldehyde Entry in Directive 76/768/EEC on Cosmetic Products(2002-01-01)
Determined safe for use in cosmetics, subject to concentration or use limitations - Safe for use in cosmetics with some qualificationsCosmetic Ingredient Review (CIR)

Data gaps

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CONCERN REFERENCE
Risk assessment method deficiencies and data gaps - Maximum reported 'as used' concentration is basis of safety assessment by industry safety panel (Cosmetic Ingredient Review, CIR) - implicit safe concentration limit in productCosmetic Ingredient Review (CIR)

Allergies/immunotoxicity

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CONCERN REFERENCE
Human skin toxicant or allergen - strong evidenceCosmetic Ingredient Review (CIR)
Human skin toxicant or allergen - strong evidencePeer Reviewed Literature
Limited evidence of immune system toxicity or allergiesUS National Library of Medicine,
Limited evidence of dermal toxicity or allergiesEuropean Chemicals Agency (ECHA)
Known human [[system]] toxicant or allergenPeer Reviewed Literature

Organ system toxicity (non-reproductive)

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CONCERN REFERENCE
Classified as not expected to be potentially toxic or harmfulEnvironment Canada

Persistence and bioaccumulation

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CONCERN REFERENCE
Not suspected to be persistentEnvironment Canada
Not suspected to be bioaccumulativeEnvironment Canada

Ecotoxicology

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CONCERN REFERENCE
Not suspected to be an environmental toxinEnvironment Canada
  • Opinion Concerning a Clarification on the Formaldehyde and para-Formaldehyde Entry in Directive 76/768/EEC on Cosmetic Products(2002-01-01)
  • Cosmetic Ingredient Review (CIR)
  • Peer Reviewed Literature
  • US National Library of Medicine,
  • European Chemicals Agency (ECHA)
  • Environment Canada

Understanding scores

Cosmetics and personal care products are not required to be tested for safety before being allowed on the market. The Skin Deep® scoring system was designed to help the public understand whether a product is safe to use or whether it contains ingredients of concern.

Every product and ingredient in Skin Deep gets a two-part score – one for hazard and one for data availability. The safest products score well by both measures, with a low hazard rating and a fair or better data availability rating.


HOW WE DETERMINE SCORES

Hazard score

The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. The EWG Verified® mark means a product meets EWG’s strictest criteria for transparency and health.

Score legend
WEIGHT-OF-EVIDENCE APPROACH

A product’s hazard score is not an average of the ingredients’ hazard scores. It is calculated using a weight-of-evidence approach that factors in all of the hazards or health impacts associated with the ingredients.

Data availability

The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.

NONE LIMITED FAIR GOOD ROBUST
Low Availability
Moderate Availability
High Availability
NONE

Ingredients have not been assessed.

LIMITED-FAIR

There is only a modest volume of research.

GOOD-ROBUST

Ingredients have been studied extensively.

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