Is Cysteamine Thioglycolate safe in cosmetics?
Cysteamine Thioglycolate has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.
MODERATE
Cosmetic Ingredient
Cysteamine Thioglycolate
INCI: CYSTEAMINE THIOGLYCOLATE
Cysteamine Thioglycolate (CAS 24901‑29‑9 (reported for cysteamine thioglycolate in cosmetic databases)) is a cosmetic cosmetic ingredient functioning as Hair waving/straightening agent, reducing agent in permanent waving/relaxing. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database.
CAS Number
24901‑29‑9 (reported for cysteamine thioglycolate in cosmetic databases)
View industrial chemical safety profile →
Function
Hair waving/straightening agent, reducing agent in permanent waving/relaxing products
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
No specific FDA prohibition; used as a waving/straightening agent under general safety requirement; must be formulated to avoid excessive irritation and comply with labeling (e.g. avoid contact with eyes/skin, professional-use instructions)
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Cysteamine Thioglycolate.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Cysteamine Thioglycolate — not a computed safety verdict. See the sourced toxicological data above.
Frequently Asked Questions
Is Cysteamine Thioglycolate allowed in the EU?
Cysteamine Thioglycolate EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Cysteamine Thioglycolate do in cosmetics?
Cysteamine Thioglycolate functions as: Hair waving/straightening agent, reducing agent in permanent waving/relaxing products. It is classified as a cosmetic ingredient in our database. CAS number: 24901‑29‑9 (reported for cysteamine thioglycolate in cosmetic databases).
Compliance Tools
Check Cysteamine Thioglycolate compliance across multiple jurisdictions:
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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