Other ConcernsUse restrictions (high), Neurotoxicity (low), Endocrine disruption (low), and Non-reproductive organ system toxicity (moderate)
SYNONYMS1-OCTADECANAMINIUM, N,N,N-TRIMETHYL-, CHLORIDE, 1OCTADECANAMINIUM, N,N,NTRIMETHYL, CHLORIDE, CHLORIDE 1-OCTADECANAMINIUM, N,N,N-TRIMETHYL-, N,N,N-TRIMETHYL- CHLORIDE 1-OCTADECANAMINIUM, N,N,N-TRIMETHYL-1-OCTADECANAMINIUM CHLORIDE, QUATERNIUM-10, STEARTRIMONIUM CHLORIDE, STEARYL TRIMETHYL AMMONIUM CHLORIDE, STEARYL TRIMETHYL AMMONIUM CHLORIDE SOLUTION, and TRIMETHYLOCTADECYLAMMONIUM CHLORIDE
Unacceptable: EWG VERIFIED products cannot contain this ingredient
Steartrimonium Chloride is a quaternary ammonium salt.
See how this product scores for common concerns.
HIGHAllergies & Immunotoxicity
LOWDevelopmental and Reproductive Toxicity
- DATA SOURCES
Products with this Ingredient
|Known human any toxicant or allergen||Open scientific literature|
|Human any toxicant or allergen - strong evidence||Open scientific literature|
|Possible human any toxicant or allergen||Open scientific literature|
|Human skin toxicant or allergen - strong evidence||Cosmetic Ingredient Review Assessments|
|Violation of government restrictions - Restricted in cosmetics; use, concentration, or manufacturing restrictions - any||Open scientific literature|
|Determined safe for use in cosmetics, subject to concentration or use limitations - Safe for use in cosmetics with some qualifications||Cosmetic Ingredient Review Assessments|
Organ system toxicity (non-reproductive)
|Possible human any toxicant||Open scientific literature|
|Classified as not expected to be potentially toxic or harmful||Environment Canada Domestic Substance List|
|One or more in vitro tests on mammalian cells demonstrate neurotoxicity||Open scientific literature|
|One or more animal studies show any effects at moderate doses||Open scientific literature|
|Associated with endocrine disruption||Open scientific literature|
|Suspected to be an environmental toxin||Environment Canada Domestic Substance List|
|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 product||Cosmetic Ingredient Review Assessments|
|75 studies in PubMed science library may include information on the toxicity of this chemical||NLM PubMed|
Persistence and bioaccumulation
|Not suspected to be persistent||Environment Canada Domestic Substance List|
|Not suspected to be bioaccumulative||Environment Canada Domestic Substance List|
- 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.
- EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
- NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.
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.