ewg.org | About SkinDeep®/Methodology | Terms & Conditions | Build Your Own Report | FAQ
 
Score:
Data available:
 
Limited

Get The Guide!

Want a free Cosmetics Guide? Donate $5 to EWG today!

Sign Up!

THIOGLYCOLIC ACID


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

About THIOGLYCOLIC ACID: Thioglycolic Acid is an organic acid.

This ingredient may be derived from animals. From PETA's Caring Consumer: Any one of several acids used as an exfoliant and in anti-wrinkle products. Lactic acid may be animal-derived (see Lactic Acid). Alternatives: glycolic acid, citric acid, and salicylic acid are plant- ... read more

Function(s): Antioxidant; Depilating Agent; Hair-Waving/Straightening Agent; Reducing Agent; DEPILATORY; HAIR WAVING OR STRAIGHTENING

Synoym(s): ACETIC ACID, MERCAPTO; ACETIC ACID, MERCAPTO-; MERCAPTO- ACETIC ACID; MERCAPTOACETIC ACID; SULFHYDRYLACETIC ACID; THIOGLYCOLLIC ACID; THIOVANIC ACID; 2-MERCAPTOACETIC ACID; 2-THIOGLYCOLIC ACID; ACIDE THIOGLYCOLIQUE (FRENCH) ; ALPHA-MERCAPTOACETIC ACID

Use restrictions

Concern Reference
Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - Use is restricted in Canadian cosmeticsCanada - Prohibited and Restricted Cosmetics Ingredients
Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - CosIng
Determined safe for use in cosmetics, subject to concentration or use limitations - Safe for use in cosmetics with some qualificationsCosmetic Ingredient Review Assessments
Recommendation to minimize use in cosmetics - Hairdressers should avoid or minimize consumer skin exposureCosmetic Ingredient Review Assessments

Allergies/immunotoxicity

Concern Reference
Human skin toxicant or allergen - strong evidenceCosmetic Ingredient Review Assessments
Human skin toxicant or allergen - strong evidence

Occupational hazards

Concern Reference
Allowed workplace exposures restricted to low dosesEuropean Union - Classification & Labelling

Organ system toxicity (non-reproductive)

Concern Reference
Classified as toxic or harmful (only for products for use on skin; products for use around the mouth; products for use on the lips; products that may be aerosolized (airborne))European Union - Classification & Labelling
Classified as not expected to be potentially toxic or harmfulEnvironment Canada Domestic Substance List

Irritation (skin, eyes, or lungs)

Concern Reference
Limited evidence of skin irritationNational Library of Medicine HazMap

Data gaps

Concern Reference
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 productCosmetic Ingredient Review Assessments
984 studies in PubMed science library may include information on the toxicity of this chemical see search results ->NLM PubMed

Ecotoxicology

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

Miscellaneous

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

Persistence and bioaccumulation

Concern Reference
Not suspected to be persistentEnvironment Canada Domestic Substance List
Not suspected to be bioaccumulativeEnvironment Canada Domestic Substance List

Data Sources

CIR (Cosmetic Ingredient Review). 2006. CIR Compendium, containing abstracts, discussions, and conclusions of CIR cosmetic ingredient safety assessments. Washington DC.
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.
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/ .
Health Canada. 2007. List of Prohibited and Restricted Cosmetic Ingredients. Canada's Cosmetic Ingredient Hotlist. March 2007.
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