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HOW WE DETERMINE SCORES Learn more About EWG VERIFIED™

Data: Fair

Cyclopentasiloxane

IMAGE SOURCE: PubChem

SEARCH PRODUCTS

Other Concerns

Neurotoxicity (low), Endocrine disruption (low), Persistence and bioaccumulation (moderate), Non-reproductive organ system toxicity (moderate), and Ecotoxicology (low)

SYNONYMS

CYCLOPENTASILOXANE, CYCLOPENTASILOXANE, DECAMETHYL-, DECAMETHYL- CYCLOPENTASILOXANE, and DECAMETHYLCYCLOPENTASILOXANE

Unacceptable

Unacceptable: EWG VERIFIED products cannot contain this ingredient

Cyclopentasiloxane (cyclomethicone) is a silicon-based cyclic compound; may be associated with environmental toxicity.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

Expand content Collapse content
foundation1090 products
concealer618 products
lipstick431 products
eye shadow352 products
antiperspirant/deodorant287 products
eye liner275 products
daily use with SPF182 products
hair treatment/serum161 products
facial moisturizer/treatment150 products
lip liner144 products
conditioner134 products
antiperspirant/deodorant (men's)127 products
moisturizer106 products
makeup primer106 products
blush100 products
recreational sunscreen94 products
brow liner90 products
CC cream83 products
BB cream76 products
lip gloss68 products
serums & essences55 products
hair styling aide50 products
mascara49 products
bronzer/highlighter48 products
mask48 products
around-eye cream42 products
hair spray41 products
shampoo36 products
hand cream27 products
makeup remover25 products
25 products
anti-aging22 products
lip balm with SPF20 products
styling gel/lotion13 products
eye makeup remover13 products
lip balm13 products
styling mousse/foam12 products
sunless tanning12 products
detangler12 products
body firming lotion11 products
baby sunscreen11 products
facial powder8 products
facial cleanser8 products
after shave7 products
toners/astringents6 products
beard oil6 products
hair color and bleaching5 products
exfoliant/scrub5 products
setting powder/spray5 products
body oil4 products
foot moisturizer3 products
body wash/cleanser3 products
bath oil/salts/soak3 products
beard care3 products
oil controller2 products
shaving cream (men's)2 products
nail treatment2 products
skin fading/lightener2 products
baby lotion2 products
cuticle treatment2 products
fragrance for women2 products
baby oil1 products
body spray1 products
glitter1 products
after sun product1 products
other eye makeup1 products
shaving cream1 products
hair removal waxes1 products
fragrance for men1 products
eyelash glue1 products

Persistence and bioaccumulation

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CONCERN REFERENCE
Persistent, bioaccumulative in wildlifeCanada PBTs - Accelerated Reduction/Elimination of Toxics (ARET)

Organ system toxicity (non-reproductive)

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CONCERN REFERENCE
Classified as expected to be toxic or harmfulEnvironment Canada Domestic Substance List

Cancer

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CONCERN REFERENCE
One or more animal studies show tumor formation at moderate dosesOpen scientific literature

Neurotoxicity

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CONCERN REFERENCE
One or more animal studies show any effects at moderate dosesOpen scientific literature

Endocrine disruption

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CONCERN REFERENCE
One or more animal studies show endocrine disruption 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
Suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Data gaps

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CONCERN REFERENCE
119 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
  • EC (Environment Canada). 1994. Accelerated Reduction/Elimination of Toxics (ARET). ARET substance list of persistent, bioaccumulative and toxic chemicals.
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
  • Open scientific/peer reviewed literature
  • NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.
  • CIR (Cosmetic Ingredient Review). 2006. CIR Compendium, containing abstracts, discussions, and conclusions of CIR cosmetic ingredient safety assessments. Washington DC.

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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