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Data: Limited

Dmdm Hydantoin (Formaldehyde Releaser)

IMAGE SOURCE: PubChem

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Other Concerns

Use restrictions (moderate), Irritation (skin, eyes, or lungs) (moderate), and Contamination concerns (high)

SYNONYMS

1,3-BIS(HYDROXYMETHYL)-5,5-DIMETHYL- 2,4-IMIDAZOLIDINEDIONE, 1,3-BIS(HYDROXYMETHYL)-5,5-DIMETHYLIMIDAZOLIDINE-2,4-DIONE, 1,3-BIS(HYDROXYMETHYL)-5,5-DIMETHYLIMIDAZOLIDINE-2,4-DIONE(+), 1,3-DIHYDROXYMETHYL-5,5 DIMETHYLHYDANTOIN, 1,3-DIMETHYLOL-5,5-DIMETHYL HYDANTOIN, 2,4-IMIDAZOLIDINEDIONE, 1,3-BIS(HYDROXYMETHYL)-5,5-DIMETHYL-, 2,4IMIDAZOLIDINEDIONE, 1,3BIS(HYDROXYMETHYL)5,5DIMETHYL, DMDM HYDANTOIN, and DMDM HYDANTOIN (FORMALDEHYDE RELEASER)

DMDM hydantoin is an antimicrobial formaldehyde releaser preservative. People exposed to such formaldehyde-releasing ingredients may develop a formaldehyde allergy or an allergy to the ingredient itself and its decomposition products. In the U.S., approximately 20% of cosmetics and personal care products contain a formaldehyde-releaser and the frequency of contact allergy to these ingredients is much higher among Americans compared to studies in Europe.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

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shampoo171 products
conditioner159 products
body wash/cleanser140 products
liquid hand soap88 products
hair styling aide82 products
moisturizer82 products
styling gel/lotion51 products
hair treatment/serum48 products
facial cleanser45 products
facial moisturizer/treatment25 products
foundation19 products
styling mousse/foam18 products
concealer15 products
makeup remover12 products
exfoliant/scrub12 products
hand cream10 products
mask10 products
after sun product10 products
hair spray10 products
detangler7 products
foot moisturizer6 products
sunless tanning5 products
daily use with SPF5 products
baby wipes5 products
serums & essences4 products
hand sanitizer4 products
hair color and bleaching4 products
body firming lotion4 products
after shave3 products
anti-aging3 products
recreational sunscreen3 products
glitter3 products
bubble bath3 products
eye liner3 products
baby lotion3 products
body spray2 products
makeup primer2 products
brow liner2 products
hair relaxer2 products
BB cream2 products
eye makeup remover2 products
2 products
beard cleanser2 products
around-eye cream2 products
beard care1 products
mouthwash1 products
hair removal waxes1 products
nail polish1 products
baby shampoo1 products
shaving cream1 products
bath oil/salts/soak1 products
foot cleansing1 products
shaving cream (men's)1 products
toners/astringents1 products

Contamination concerns

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Chemical
FORMALDEHYDE

Allergies/immunotoxicity

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CONCERN REFERENCE
Known human immune toxicant or allergenOpen scientific literature
Human skin toxicant or allergen - strong evidenceCosmetic Ingredient Review Assessments
Limited evidence of immune system toxicity or allergiesNational Library of Medicine HazMap

Irritation (skin, eyes, or lungs)

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CONCERN REFERENCE
Human any irritant - strong evidenceCosmetic Ingredient Review Assessments

Use restrictions

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CONCERN REFERENCE
Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - Japan - prohibited for use in some types of cosmeticsJapan's Standards for Cosmetics

Cancer

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CONCERN REFERENCE
Cancer - limited evidenceOpen scientific literature

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 Assessments
24 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed

Informational

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CONCERN REFERENCE
Industry or government recommendations for safe use: restrictions on concentration, impurities, product types, or manufacturing methods - anyCosmetic Ingredient Review Assessments

Ecotoxicology

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CONCERN REFERENCE
Not suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Organ system toxicity (non-reproductive)

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

Persistence and bioaccumulation

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CONCERN REFERENCE
Not suspected to be persistentEnvironment Canada Domestic Substance List
Not suspected to be bioaccumulativeEnvironment Canada Domestic Substance List
  • Open scientific/peer reviewed literature
  • CIR (Cosmetic Ingredient Review). 2006. CIR Compendium, containing abstracts, discussions, and conclusions of CIR cosmetic ingredient safety assessments. Washington DC.
  • NLM (National Library of Medicine). 2006. HazMap — Occupational Exposure to Hazardous Agents.
  • Japan Ministry of Health, Labour and Welfare. 2006. Standards for Cosmetics. Evaluation and Licensing Division. Pharmaceutical and Food Safety Bureau.
  • NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.

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

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

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