Find products and ingredients Learn how Skin Deep® works Meet our experts Discover EWG VERIFIED™

Data: Limited

Polybutene

IMAGE SOURCE: PubChem

SEARCH PRODUCTS

Other Concerns

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

SYNONYMS

1-BUTENE, HOMOPOLYMER, HOMOPOLYMER 1-BUTENE, and POLYBUTENE

Restricted

Restricted: EWG VERIFIED products cannot contain this ingredient without adequate substantiation


Polybutene is a polymer used as a plasticizer and viscosity agent.

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
lip gloss634 products
lipstick628 products
lip balm233 products
lip liner179 products
eye shadow171 products
eye liner152 products
mascara128 products
bronzer/highlighter89 products
lip plumper76 products
blush64 products
concealer62 products
brow liner55 products
foundation27 products
lip balm with SPF19 products
mask15 products
facial powder15 products
makeup primer10 products
recreational sunscreen9 products
exfoliant/scrub8 products
around-eye cream6 products
glitter5 products
hair color and bleaching3 products
BB cream3 products
3 products
baby sunscreen3 products
cuticle treatment2 products
makeup remover2 products
moisturizer2 products
setting powder/spray1 products
shaving cream (men's)1 products
styling gel/lotion1 products
facial cleanser1 products
nail treatment1 products
tanning oil1 products
other eye makeup1 products
anti-aging1 products

Organ system toxicity (non-reproductive)

Expand content Collapse content
CONCERN REFERENCE
Classified as expected to be toxic or harmfulEnvironment Canada Domestic Substance List
Classified as medium human health priorityEnvironment Canada Domestic Substance List
Classified as potentially toxic or harmfulOpen scientific literature

Irritation (skin, eyes, or lungs)

Expand content Collapse content
CONCERN REFERENCE
Limited evidence of any irritationOpen scientific literature

Ecotoxicology

Expand content Collapse content
CONCERN REFERENCE
Wildlife and environmental toxicityOpen scientific literature
Not suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Data gaps

Expand content Collapse content
CONCERN REFERENCE
Pesticide inert of potential toxicological concernOpen scientific literature
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
45 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed

Persistence and bioaccumulation

Expand content Collapse content
CONCERN REFERENCE
Not suspected to be bioaccumulativeEnvironment Canada Domestic Substance List

Informational

Expand content Collapse content
CONCERN REFERENCE
Industry or government recommendations for safe use: restrictions on concentration, impurities, product types, or manufacturing methods - anyCosmetic Ingredient Review Assessments
Industry or government recommendations for safe use: restrictions on concentration, impurities, product types, or manufacturing methods - anyOpen scientific literature
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
  • 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). 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

Can’t find your product?

Enter the ingredients in EWG’s Build Your Own Report tool to get an approximate score for that product.

BUILD YOUR OWN REPORT

EWG research
on the go

Find personal care, cleaning, and food products on the EWG Healthy Living app.

DOWNLOAD THE APP