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Data: Fair

Cyclotetrasiloxane

Other Concerns

Enhanced skin absorption, Use restrictions (high), Endocrine disruption (moderate), Persistence and bioaccumulation (moderate), Non-reproductive organ system toxicity (moderate), and Ecotoxicology (low)

SYNONYMS

● CYCLOTETRASILOXANE
● CYCLOTETRASILOXANE, OCTAMETHYL
● CYCLOTETRASILOXANE, OCTAMETHYL-
● DECAMETHYLCYCLOTETRASILOXANE
● HEXANETHYLCYCLOTRISILOXANE
● OCTAMETHYL CYCLOTETRASILOXANE
● OCTAMETHYL- CYCLOTETRASILOXANE
● OCTAMETHYLCYCLOTETRASILOXANE

Unacceptable

Unacceptable: EWG VERIFIED products cannot contain this ingredient


Cyclotetrasiloxane is a cyclic dimethyl polysiloxane.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

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hair treatment/serum25 products
hair spray15 products
conditioner12 products
facial moisturizer/treatment11 products
foundation10 products
shampoo5 products
moisturizer5 products
styling gel/lotion4 products
hair styling aide4 products
daily use with SPF4 products
eye liner3 products
BB cream3 products
makeup primer2 products
serums & essences2 products
lipstick2 products
around-eye cream2 products
recreational sunscreen2 products
detangler2 products
body firming lotion1 products
cuticle treatment1 products
setting powder/spray1 products
body cleansing wipes1 products
makeup remover1 products
mask1 products

Enhanced skin absorption

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CONCERN REFERENCE
Penetration enhancerOpen scientific literature

Use restrictions

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CONCERN REFERENCE
Violation of government restrictions - Banned or found unsafe for use in cosmeticsCosIng

Endocrine disruption

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CONCERN REFERENCE
Human endocrine disruptor - strong evidenceEuropean Commission on Endocrine Disruption
One or more animal studies show endocrine disruption at moderate dosesOpen scientific literature
One or more studies show weak endocrine disruptionOpen scientific literature

Organ system toxicity (non-reproductive)

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CONCERN REFERENCE
Classified as a high human health priorityEnvironment Canada Domestic Substance List
Classified as expected to be toxic or harmfulEnvironment Canada Domestic Substance List
Limited evidence of any toxicityOpen scientific literature

Persistence and bioaccumulation

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CONCERN REFERENCE
Persistent or bioaccumulative and moderate to high toxicity concern in humansEnvironment Canada Domestic Substance List
Persistent, bioaccumulative in wildlifeCanada PBTs - Accelerated Reduction/Elimination of Toxics (ARET)

Developmental/reproductive toxicity

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CONCERN REFERENCE
Limited evidence of developmental toxicityCPS&Q - Classification & Labelling
One or more animal studies show any effects at moderate dosesOpen scientific literature

Ecotoxicology

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CONCERN REFERENCE
Suspected to be an environmental toxin and be persistent or bioaccumulativeEnvironment Canada Domestic Substance List
Wildlife and environmental toxicityCPS&Q - Classification & Labelling
Suspected to be an environmental toxinEnvironment 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 - anyCosmetic Ingredient Review Assessments

Data gaps

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CONCERN REFERENCE
151 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed
  • Open scientific/peer reviewed literature
  • 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/ .
  • EU (European Union)- Strategy for Endocrine Disrupters 2007. Commision on endocrin disruption requested by the European Parliament in 1998.
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
  • EC (Environment Canada). 1994. Accelerated Reduction/Elimination of Toxics (ARET). ARET substance list of persistent, bioaccumulative and toxic chemicals.
  • CPS&Q (Consumer Products Safety & Quality) formely known as ECB (European Chemicals Bureau). 2008. Classification and Labelling: Chemicals: Annex VI of Directive 67/548/EEC through the 31st ATP.
  • 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). 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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