Is Phenylthioglycolic Acid safe in cosmetics?
Phenylthioglycolic Acid has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.
Moderate
Cosmetic Ingredient
Phenylthioglycolic Acid
INCI: PHENYLTHIOGLYCOLIC ACID
Phenylthioglycolic Acid (CAS 103-04-8 [^1_1]) is a cosmetic cosmetic ingredient functioning as Depilatory agent / hair-waving agent. EU Regulation 1223/2009 status: restricted, max 5%. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 103-04-8 [^1_1] →
Auto-generated CPSR Part A draft with source citations
Function
Depilatory agent / hair-waving agent
Safety Rating
MODERATE
Regulatory Status
EU EU Status
restricted
EU Max Conc.
5%
US US Status
permitted
US Notes
FDA permitted cosmetic ingredient; no specific monograph; manufacturer responsibility under FD&C Act
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Phenylthioglycolic Acid.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Phenylthioglycolic Acid.
Frequently Asked Questions
Is Phenylthioglycolic Acid allowed in the EU?
Phenylthioglycolic Acid EU regulatory status: restricted. Maximum allowed concentration: 5%. This is based on EU Regulation 1223/2009 and its amendments.
What does Phenylthioglycolic Acid do in cosmetics?
Phenylthioglycolic Acid functions as: Depilatory agent / hair-waving agent. It is classified as a cosmetic ingredient in our database. CAS number: 103-04-8 [^1_1].
Compliance Tools
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Substance Compliance
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MoS Calculator
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