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Data: Good

Basic Blue 9

IMAGE SOURCE: PubChem

SEARCH PRODUCTS

Other Concerns

Use restrictions (high), Non-reproductive organ system toxicity (low), and Irritation (skin, eyes, or lungs) (low)

SYNONYMS

● 3,7-BIS(DIMETHYLAMINO)- CHLORIDE PHENOTHIAZIN-5-IUM
● 3,7-BIS(DIMETHYLAMINO)PHENOTHIAZIN-5-IUM CHLORIDE
● 7-(DIMETHYLAMINO)-3-(METHYLIMINO)-3H-PHENOTHIAZINE, 3-METHOCHLORIDE
● BASIC BLUE 9
● CHLORIDE PHENOTHIAZIN-5-IUM, 3,7-BIS(DIMETHYLAMINO)-
● CI 52015
● METHYLENE BLUE
● METHYLENIUM CERULEUM
● METHYLTHIONINE CHLORIDE
● METHYLTHIONINIUM CHLORIDE
● PHENOTHIAZIN-5-IUM, 3,7-BIS(DIMETHYLAMINO)-, CHLORIDE
● PHENOTHIAZIN5IUM, 3,7BIS(DIMETHYLAMINO), CHLORIDE
● SOLVENT BLUE 8
● TETRAMETHYLTHIONI NE CHLOIDE

Unacceptable

Unacceptable: EWG VERIFIED products cannot contain this ingredient


Basic Blue 9 is a thiazine color.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

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hair color and bleaching4 products

Use restrictions

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CONCERN REFERENCE
Violation of government restrictions - Banned or found unsafe for use in cosmeticsCosIng
Determined safe for use in cosmetics, subject to concentration or use limitations - anyCTFA International Cosmetic Ingredient Dictionary and Handbook

Cancer

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CONCERN REFERENCE
Limited evidence of carcinogenicityOpen scientific literature
Cancer - limited evidenceCTFA International Cosmetic Ingredient Dictionary and Handbook
Limited or incomplete evidence of cancer according to safety/hazard data – government assessment cannot classify as human carcinogen due to data gapsInt'l Agency for Research on Cancer (IARC) - Carcinogens
Not likely to be carcinogenic in humansOpen scientific literature

Organ system toxicity (non-reproductive)

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CONCERN REFERENCE
Limited evidence of cardiovascular or blood toxicityScorecard.org Toxicity Information
Limited evidence of cardiovascular or blood toxicityNational Library of Medicine HazMap
Classified as not expected to be potentially toxic or harmfulEnvironment Canada Domestic Substance List

Irritation (skin, eyes, or lungs)

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CONCERN REFERENCE
Limited evidence of skin irritationNational Library of Medicine HazMap

Ecotoxicology

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CONCERN REFERENCE
Not suspected to be an environmental toxinEnvironment 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

Informational

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CONCERN REFERENCE
Industry or government recommendations for safe use: restrictions on concentration, impurities, product types, or manufacturing methods - anyOpen scientific literature

Data gaps

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CONCERN REFERENCE
12556 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed
  • European Commission. 2013. Cosing, the European Commission database with information on cosmetic substances and ingredients. Accessed on March 1, 2013 at http://ec.europa.eu/consumers/cosmetics/cosing/ .
  • CTFA (Cosmetic, Toiletry and Fragrance Association). 2006. International Cosmetic Ingredient Dictionary and Handbook, 11th Edition. Color Additive Information. Washington, DC.
  • Open scientific/peer reviewed literature
  • IARC (International Agency for Research on Cancer). 2008. Overall Evaluations of Carcinogenicity to Humans, as evaluated in IARC Monographs Volumes 1-99 (a total of 935 agents, mixtures and exposures).
  • ED (Environmental Defense). 2006. Scorecard _ The Pollution Information Site. http://www.scorecard.org.
  • NLM (National Library of Medicine). 2006. HazMap — Occupational Exposure to Hazardous Agents.
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
  • NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.

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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