Health Concerns of the Ingredient:
Overall Hazard
Developmental &
reproductive toxicity
About PROPYLENE GLYCOL: Propylene glycol is a small organic alcohol commonly used as a skin conditioning agent. It has been associated with irritant and allergic contact dermatitis as well as contact urticaria in humans; the ... read more
About PROPYLENE GLYCOL: Propylene glycol is a small organic alcohol commonly used as a skin conditioning agent. It has been associated with irritant and allergic contact dermatitis as well as contact urticaria in humans; these sensitization effects can be manifested at propylene glycol concentrations as low as 2%.
Function(s): Fragrance Ingredient; Humectant; Skin-Conditioning Agent - Humectant; Skin-ConditioningAgent - Miscellaneous; Solvent; Viscosity Decreasing Agent; SKIN CONDITIONING; VISCOSITY CONTROLLING
Synoym(s): 1,2-DIHYDROXYPROPANE; 1,2-PROPANEDIOL; 2-HYDROXYPROPANOL; METHYLETHYL GLYCOL; PROPANE-1,2-DIOL; 1,2-DIHYDROXYPROPANE; 1,2-PROPYLENE GLYCOL; 1,2-PROPYLENGLYKOL (GERMAN) ; ALPHA-PROPYLENEGLYCOL; DOWFROST; METHYLETHYLENE GLYCOL
Allergies/immunotoxicity
| Concern |
Reference |
| Limited evidence of skin and immune system toxicity or allergies | CIR (Cosmetic Ingredient Review) |
Organ system toxicity (non-reproductive)
| Concern |
Reference |
| Classified as expected to be toxic or harmful | Environment Canada Domestic Substance List |
Irritation (skin, eyes, or lungs)
| Concern |
Reference |
| Classified as skin irritant | National Library of Medicine HazMap |
Use restrictions
| Concern |
Reference |
| Determined safe for use in cosmetics, subject to concentration or use limitations - Safe for use in cosmetics with some qualifications | Cosmetic Ingredient Review Assessments |
Enhanced skin absorption
| Concern |
Reference |
| Penetration enhancer | Cosmetic Ingredient Review Assessments |
Developmental/reproductive toxicity
| Concern |
Reference |
| Not likely to be a toxicant in humans | NTP - Risks to Human Reproduction |
Data gaps
| Concern |
Reference |
| Safety assessment was based on related chemical | Cosmetic Ingredient Review Assessments |
| 4,529 studies in PubMed science library may include information on the toxicity of this chemical see search results -> | NLM PubMed |
Multiple, additive exposure sources
| Concern |
Reference |
| 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 |
Data Sources
| CIR (Cosmetic Ingredient Review). 2006. CIR Compendium, containing abstracts, discussions, and conclusions of CIR cosmetic ingredient safety assessments. Washington DC. |
| 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. |
| 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. |
| IFRA (International Fragrance Assocication). 2010. IFRA Fragrance Ingredient List based on 2008 Use Survey. Accessed online 01/04/2010: http://www.ifraorg.org/Home/News/Latest-News/page.aspx/66?xf_itemId=43&xf_selectionDatapartId=25 |
| NLM (National Library of Medicine). 2006. HazMap — Occupational Exposure to Hazardous Agents. |
| NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov. |
| NTP (National Toxicology Program). 2006. NTP Center for the Evaluation fo Risks to Human Reproduction (CERHR). NTP-CERHR Reports and Monographs. |
Products Containing the Ingredient
About the ratings
EWG provides information on personal care product ingredients from the published scientific literature, to supplement incomplete data available from companies and the government. The ratings below indicate the relative level of concern posed by exposure to the ingredients in this product - not the product itself - compared to other product formulations. The ratings reflect potential health hazards but do not account for the level of exposure or individual susceptibility, factors which determine actual health risks, if any.
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