Other ConcernsUse restrictions (low), Non-reproductive organ system toxicity (moderate), and Ecotoxicology (low)
This ingredient is not currently on EWG's Skin Deep Restricted or Unacceptable Lists.
Polyquaternium-37 is a polymeric quaternary ammonium salt.
See how this product scores for common concerns.
LOWAllergies & Immunotoxicity
LOWDevelopmental and Reproductive Toxicity
- DATA SOURCES
Products with this Ingredient
|hair treatment/serum||112 products|
|hair styling aide||70 products|
|styling gel/lotion||22 products|
|hair color and bleaching||17 products|
|pore strips||8 products|
|sunless tanning||3 products|
|hand sanitizer||3 products|
|beard care||3 products|
|facial moisturizer/treatment||2 products|
|hair spray||2 products|
|serums & essences||2 products|
|hair relaxer||2 products|
|hand cream||2 products|
|bar soap||1 products|
|body wash/cleanser||1 products|
|facial cleanser||1 products|
|after shave||1 products|
|recreational sunscreen||1 products|
|hair-loss treatment||1 products|
|cuticle treatment||1 products|
Organ system toxicity (non-reproductive)
|Classified as expected to be toxic or harmful||Environment Canada Domestic Substance List|
|Determined safe for use in cosmetics, subject to concentration or use limitations - Safe for use in cosmetics with some qualifications||Cosmetic Ingredient Review Assessments|
|Suspected to be an environmental toxin and be persistent or bioaccumulative||Environment Canada Domestic Substance List|
|Suspected to be an environmental toxin||Environment Canada Domestic Substance List|
|0 studies in PubMed science library may include information on the toxicity of this chemical||NLM PubMed|
Persistence and bioaccumulation
|Not suspected to be bioaccumulative||Environment Canada Domestic Substance List|
- EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
- 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.
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.