# THIOGLYCOLIC ACID

URL: https://app.greenveil.ai/ingredients/ingredient_cas_68_11_1
Categories: beauty, cleaning, industrial
Functions: Antioxidant, Depilatory, Hair waving or straightening, Iron Control, Reducing agent
Identifier: 68-11-1

> THIOGLYCOLIC ACID is used as antioxidant / depilatory. Greenveil chemical-concern score: 70/100 — High concern based on regulatory listings.. Assessed from 7 sources.

## Safety assessment

- Chemical concern score: 70/100 — High concern based on regulatory listings.
- Confidence: 4
- Rationale: Thioglycolic acid and its salts is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: restricted — Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: (a) Hair products (b) Depilatories (c) Hair rinse-off products (d) Products intended for eyelash waving Maximum concentration: (a) (i) 8% (ii) 11% (b) 5% (c) 2% (d) 11% The abovementioned percentages are calculated as thioglycollic acid Other conditions: (a) (i) General use ready for use pH 7 to 9.5 (ii) Professional use ready for use pH 7 to 9.5 (b) ready for use pH 7 to 12.7 (c) ready for use pH 7 to 9.5 (d) ready for use pH 7 to 9,5 Conditions of use and warnings: Conditions of use: (a) (b) (c) (d) Avoid contact with eyes Rinse eyes immediately if product comes into contact with them. (a) (c) (d) Wear suitable gloves Warnings to be printed on the label: (a)(i) (b) (c) Contains thioglycolate Follow the instructions Keep out of reach of children (a)(ii) (d) For professional use only Contains thioglycolate Follow the instructions’
- EU: restricted — Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Maximum concentration: Maximum secondary amine content: 0.5% Other conditions: - Do not use with nitrosating systems - Minimum purity: 99% - Maximum secondary amine content: 0.5% (applies to raw materials) - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers
- US: commercial use observed — EPA CPDat observed this chemical in 42 composition records across product categories including Vehicle, Cleaning products and household care, Personal care. EPA CPDat classifies this chemical for functional uses including Antioxidant, Reducing agent, Depilatory.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._