Regulatory Status
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Safety Data
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Expert Verdict
Thiol group may cause mild irritation at high concentrations; limited published dermal toxicity data available.
Frequently Asked Questions
Is Ethyl Cysteinate HCl safe in cosmetics?
Thiol group may cause mild irritation at high concentrations; limited published dermal toxicity data available. The EU classifies Ethyl Cysteinate HCl as "permitted". Safety rating: GOOD.
Is Ethyl Cysteinate HCl allowed in the EU?
Ethyl Cysteinate HCl EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Ethyl Cysteinate HCl do in cosmetics?
Ethyl Cysteinate HCl functions as: Antioxidant / Reducing agent / Hair conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 868-59-7 [^1_5].
What is the Margin of Safety for Ethyl Cysteinate HCl?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
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Related Ingredients
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