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HOW WE DETERMINE SCORES Learn more About EWG VERIFIED®

Data: Robust

Styrene

IMAGE SOURCE: PubChem

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Other Concerns

Enhanced skin absorption, Use restrictions (high), Endocrine disruption (moderate), Non-reproductive organ system toxicity (high), Ecotoxicology (low), Irritation (skin, eyes, or lungs) (high), and Occupational hazards (moderate)

SYNONYMS

● POLYSTYRENE STANDARD, M.W. 123,000, MW/MN 1.08
● POLYSTYRENE LATEX MICROSPHERE, 1 MICRON, DRY FORM
● POLYSTYRENE STANDARD, M.W. 1,300, MW/MN 1.06
● STYRENE, 99.5% STAB. WITH 4-TERT-BUTYLCATECHOL
● STYRENE, REAGENTPLUS(R), CONTAINS 4-TERT-BUTYLCATECHOL AS STABILIZER, >=99%
● A800199
● POLYSTYRENE STANDARD, M.W. 2,200, MW/MN 1.06
● POLYSTYRENE STANDARD, M.W. 5,200, MW/MN 1.06
● POLYSTYRENE STANDARD, M.W. 4,000, MW/MN 1.06
● STYRENE CONTAINS 4-TERT-BUTYLCATECHOL AS STABILIZER

Unacceptable

Unacceptable: EWG VERIFIED products cannot contain this ingredient

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

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bubble bath1 products
eyelash glue1 products
nail polish1 products
eye liner1 products

Cancer

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CONCERN REFERENCE
Possible human carcinogenReport on Carcinogens, Twelfth Edition(2011-01-01)
Limited evidence of carcinogenicityInternational Agency for Research on Cancer (IARC)
Possible human carcinogenNational Toxicology Program (NTP)
Possible human carcinogenInternational Agency for Research on Cancer (IARC)

Ecotoxicology

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CONCERN REFERENCE
Wildlife and environmental toxicityEU GHS Hazard Labeling Codes
Not suspected to be an environmental toxinEnvironment Canada

Irritation (skin, eyes, or lungs)

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CONCERN REFERENCE
Classified as any irritantEU GHS Hazard Labeling Codes
Limited evidence of skin irritationUS. National Library of Medicine,

Occupational hazards

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CONCERN REFERENCE
Allowed workplace exposures restricted to low dosesEU GHS Hazard Labeling Codes

Miscellaneous

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CONCERN REFERENCE
Occupational hazards related to handlingEU GHS Hazard Labeling Codes

Multiple, additive exposure sources

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CONCERN REFERENCE
Designated as safe for general or specific, limited use in foodUS. Food and Drug Administration (FDA)

Organ system toxicity (non-reproductive)

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CONCERN REFERENCE
Classified as not expected to be potentially toxic or harmfulEnvironment Canada
Classified as a low human health priorityEnvironment Canada
Known human respiratory toxicantEnvironmental Protection Agency (EPA)
One or more animal studies show classified as toxic effects at moderate doses (low dose studies may be unavailable for this ingredient)Environmental Protection Agency (EPA)

Persistence and bioaccumulation

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

Endocrine disruption

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CONCERN REFERENCE
Human endocrine disruptor - strong evidenceEuropean Union

Allergies/immunotoxicity

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CONCERN REFERENCE
Limited evidence of immune system toxicity or allergiesUS. National Library of Medicine,
Human immune and respiratory toxicant or allergen - strong evidenceAssociation of Occupational and Environmental Clinics (AOEC)

Neurotoxicity

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CONCERN REFERENCE
nervous system - weight of evidence unknown/unassessed/unreview: published lit review or major tox studyUS. National Library of Medicine,

Developmental/reproductive toxicity

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CONCERN REFERENCE
Possible human reproductive or developmental toxinEuropean Chemicals Agency (ECHA)

Use restrictions

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CONCERN REFERENCE
Violation of government restrictions - Banned or found unsafe for use in cosmeticsEU Cosmetics Directive
  • Report on Carcinogens, Twelfth Edition(2011-01-01)
  • International Agency for Research on Cancer (IARC)
  • National Toxicology Program (NTP)
  • EU GHS Hazard Labeling Codes
  • Environment Canada
  • US. National Library of Medicine,
  • US. Food and Drug Administration (FDA)
  • Environmental Protection Agency (EPA)
  • European Union
  • Association of Occupational and Environmental Clinics (AOEC)
  • European Chemicals Agency (ECHA)
  • EU Cosmetics Directive

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.

Can’t find your product?

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