Is Lysine Carboxymethyl Cysteinate safe in cosmetics?
Lysine Carboxymethyl Cysteinate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Lysine Carboxymethyl Cysteinate
INCI: LYSINE CARBOXYMETHYL CYSTEINATE
Lysine Carboxymethyl Cysteinate (CAS Not widely published [^1_4]) is a cosmetic cosmetic ingredient functioning as Skin conditioning, hair waving/straightening (reduces disulfide bonds),. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS Not widely published [^1_4] →
Auto-generated CPSR Part A draft with source citations
Function
Skin conditioning, hair waving/straightening (reduces disulfide bonds), humectant
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — not prohibited or restricted under 21 CFR
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Lysine Carboxymethyl Cysteinate.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Lysine Carboxymethyl Cysteinate.
Regulatory Flags
potential-allergen
Frequently Asked Questions
Is Lysine Carboxymethyl Cysteinate allowed in the EU?
Lysine Carboxymethyl Cysteinate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Lysine Carboxymethyl Cysteinate do in cosmetics?
Lysine Carboxymethyl Cysteinate functions as: Skin conditioning, hair waving/straightening (reduces disulfide bonds), humectant. It is classified as a cosmetic ingredient in our database. CAS number: Not widely published [^1_4].
Compliance Tools
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Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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