Other ConcernsNon-reproductive organ system toxicity (moderate)
SYNONYMS1-PROPENE, 2-METHYL-, HOMOPOLYMER; 1-PROPENE, 2-METHYL-, HOMOPOLYMER(C4H8)X, X = 17; 1-PROPENE, 2-METHYL-, HOMOPOLYMER(C4H8)X, X = 17, 1-PROPENE,-2-METHYL-, HOMOPOLYMER, 1PROPENE, 2METHYL, HOMOPOLYMER, 2-METHYL-1-PROPENE, HOMOPOLYMER, HOMOPOLYMER 1-PROPENE,-2-METHYL-, HOMOPOLYMER 2-METHYL-1-PROPENE, ISOBUTENE HOMOPOLYMER, ISOBUTYLENE HOMOPOLYMER, PERMETHYL 108A, POLYISOBUTENE, and POLYISOBUTYLENE
This ingredient is not currently on EWG's Restricted or Unacceptable Lists.
Polyisobutene is a synthetic polymer of isobutylene; used as a film-forming agent.
See how this product scores for common concerns.
LOWAllergies & Immunotoxicity
LOWDevelopmental and Reproductive Toxicity
- DATA SOURCES
Products with this Ingredient
|lip gloss||188 products|
|lip balm||118 products|
|eye shadow||105 products|
|eye liner||99 products|
|facial moisturizer/treatment||42 products|
|lip liner||34 products|
|brow liner||30 products|
|daily use with SPF||26 products|
|serums & essences||19 products|
|around-eye cream||19 products|
|lip plumper||14 products|
|recreational sunscreen||9 products|
|makeup primer||6 products|
|hand cream||5 products|
|hair treatment/serum||5 products|
|hair styling aide||4 products|
|facial cleanser||3 products|
|shaving cream (men's)||3 products|
|shaving cream||3 products|
|foot cleansing||2 products|
|baby lotion||2 products|
|body firming lotion||2 products|
|after shave||1 products|
|bar soap||1 products|
|hair color and bleaching||1 products|
|makeup remover||1 products|
|foot odor control||1 products|
|beard care||1 products|
|lip balm with SPF||1 products|
|styling gel/lotion||1 products|
|facial powder||1 products|
|foot moisturizer||1 products|
|sunless tanning||1 products|
|hair spray||1 products|
Organ system toxicity (non-reproductive)
|Classified as expected to be toxic or harmful||Environment Canada Domestic Substance List|
|Classified as medium human health priority||Environment Canada Domestic Substance List|
Multiple, additive exposure sources
|Designated as safe for general or specific, limited use in food||FDA Food Additive Status|
|Designated as safe for general or specific, limited use in food||FDA Everything Added to Food|
|Not suspected to be an environmental toxin||Environment Canada Domestic Substance List|
Persistence and bioaccumulation
|Not suspected to be bioaccumulative||Environment Canada Domestic Substance List|
|194 studies in PubMed science library may include information on the toxicity of this chemical||NLM PubMed|
|Industry or government recommendations for safe use: restrictions on concentration, impurities, product types, or manufacturing methods - any||Cosmetic Ingredient Review Assessments|
- EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
- FDA (U.S. Food and Drug Administration) 2006. Food Additive Status List. Downloaded from http://www.cfsan.fda.gov/%7Edms/opa-appa.html, Oct 16, 2006.
- FDA (U.S. Food and Drug Administration). 2008. EAFUS [Everything Added to Food]: A Food Additive Database. FDA Office of Food Safety and Applied Nutrition.
- 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.
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
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.
The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.