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.
Auto-generated CPSR Part A draft with source citations
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
Safety Rating
MODERATE
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.
Expert Verdict
Expert safety assessment and concern-level summary for Cysteamine Thioglycolate.
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
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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