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SODIUM HYDROXIDE


image source: PubChem
Health Concerns of the Ingredient:
Overall Hazard
 
 
Cancer
 
 
Developmental &
reproductive toxicity
 
 
Allergies & immunotoxicity
 
 
Other MODERATE concerns: Organ system toxicity (non-reproductive); Other LOW concerns: Irritation (skin, eyes, or lungs), Occupational hazards

About SODIUM HYDROXIDE: Sodium Hydroxide is a highly caustic and reactive inorganic base.

Function(s): Denaturant; pH Adjuster; BUFFERING

Synoym(s): CAUSTIC SODA; CAUSTIC SODA; SODIUM HYDROXIDE; SODIUM HYDROXIDE; SODIUM HYDRATE; SODIUM HYDROXIDE (NA (OH) ) ; SODIUM HYDROXIDE SOLUTION; CAUSTIC SODA; HYDROXYDE DE SODIUM (FRENCH) ; LEWIS-RED DEVIL LYE; NATRIUMHYDROXID (GERMAN) ; NATRIUMHYDROXYDE (DUTCH) ; SODA LYE

Use restrictions

Concern Reference
Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - CosIng

Organ system toxicity (non-reproductive)

Concern Reference
Classified as expected to be toxic or harmfulEnvironment Canada Domestic Substance List
Classified as medium human health priorityEnvironment Canada Domestic Substance List

Occupational hazards

Concern Reference
Single case study detailing occupational hazardsNational Library of Medicine HazMap

Data gaps

Concern Reference
6,558 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 foodFDA Food Additive Status
Designated as safe for general or specific, limited use in foodFDA Everything Added to Food

Persistence and bioaccumulation

Concern Reference
Not suspected to be bioaccumulativeEnvironment Canada Domestic Substance List

Miscellaneous

Concern Reference
Occupational hazards related to handlingEuropean Union - Classification & Labelling

Ecotoxicology

Concern Reference
Not suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Data Sources

A Relational Database of Hazardous Chemicals and Occupational Diseases. Browse Haz-Map by Adverse Effects http://hazmap.nlm.nih.gov/hazmapadv.html; California EPA, Office of Environmental Health Hazard Assessment. Acute Reference Exposure Levels (RELs), Averaging Times, and Toxicologic Endpoints. Includes all Acute Reference Exposure Levels (ARELs) developed by OEHHA through May 2000http://www.oehha.org/air/acute_rels/allAcRELs.html;California EPA, Office of Environmental Health Hazard Assessment. Air Toxics Hot Spots Program Risk Assessment Guidelines, Part III: Technical Support Document "Determination of Noncancer Chronic Reference Exposure Levels". Includes all Chronic Reference Exposure Levels (CRELs) adopted by OEHHA as of August 2003 (http://www.oehha.ca.gov/air/chronic_rels/AllChrels.html, plus draft CRELS proposed through March 2004 (http://www.oehha.ca.gov/air/chronic_rels/index.html.
A Relational Database of Hazardous Chemicals and Occupational Diseases. Browse Haz-Map by Adverse Effects http://hazmap.nlm.nih.gov/hazmapadv.html; California EPA, Office of Environmental Health Hazard Assessment. Acute Reference Exposure Levels (RELs), Averaging Times, and Toxicologic Endpoints. Includes all Acute Reference Exposure Levels (ARELs) developed by OEHHA through May 2000http://www.oehha.org/air/acute_rels/allAcRELs.html;California EPA, Office of Environmental Health Hazard Assessment. Air Toxics Hot Spots Program Risk Assessment Guidelines, Part III: Technical Support Document "Determination of Noncancer Chronic Reference Exposure Levels". Includes all Chronic Reference Exposure Levels (CRELs) adopted by OEHHA as of August 2003 (http://www.oehha.ca.gov/air/chronic_rels/AllChrels.html, plus draft CRELS proposed through March 2004 (http://www.oehha.ca.gov/air/chronic_rels/index.html.
AOEC (Association of Occupational and Environmental Clinics). 2009. AEOC exposures codes and asthmagen designation.
CPS&Q (Consumer Products Safety & Quality) formely known as ECB (European Chemicals Bureau). 2008. Classification and Labelling: Chemicals: Annex VI of Directive 67/548/EEC through the 31st ATP.
EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
EPA (U.S. Environmental Protection Agency). 1999. Toxics Release Inventory Program. PBT Chemical Rule.
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/ .
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.

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. Learn more | Legal Disclaimer