- Products with the EWG VERIFIED mark have met use restrictions and warnings based on EWG review of company data.
Other ConcernsUse restrictions (moderate)
Restricted: EWG VERIFIED products cannot contain this ingredient without adequate substantiation
Polyquaternium-39 is a polymeric quaternary ammonium salt of acrylic acid, diallyl dimethylammonium chloride and acrylamide.
See how this product scores for common concerns.
LOWAllergies & Immunotoxicity
LOWDevelopmental and Reproductive Toxicity
- DATA SOURCES
Products with this Ingredient
|facial cleanser||24 products|
|body wash/cleanser||6 products|
|hair treatment/serum||5 products|
|shaving cream||1 products|
|makeup remover||1 products|
|hair spray||1 products|
|hair styling aide||1 products|
|styling gel/lotion||1 products|
|hair color and bleaching||1 products|
|Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - any||CosIng|
|Determined safe for use in cosmetics, subject to concentration or use limitations - Safe for use in cosmetics with some qualifications||Cosmetic Ingredient Review Assessments|
|111 studies in PubMed science library may include information on the toxicity of this chemical||NLM PubMed|
- European Commission. 2013. Cosing, the European Commission database with information on cosmetic substances and ingredients. Accessed on March 1, 2013 at http://ec.europa.eu/consumers/cosmetics/cosing/ .
- 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.