Is Dimethyl Cystinate safe in cosmetics?
Dimethyl Cystinate has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
MODERATE
Cosmetic Ingredient
Dimethyl Cystinate
INCI: DIMETHYL CYSTINATE
Dimethyl Cystinate (CAS 14545-08-5 (L-Cystine dimethyl ester) — *verify against your COSING listing*) is a cosmetic cosmetic ingredient functioning as Hair conditioning (cystine derivative). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
CAS Number
14545-08-5 (L-Cystine dimethyl ester) — *verify against your COSING listing*
View industrial chemical safety profile →
Function
Hair conditioning (cystine derivative)
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — no specific CFR prohibition; limited CIR data
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Dimethyl Cystinate.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Dimethyl Cystinate — not a computed safety verdict. See the sourced toxicological data above.
Frequently Asked Questions
Is Dimethyl Cystinate allowed in the EU?
Dimethyl Cystinate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Dimethyl Cystinate do in cosmetics?
Dimethyl Cystinate functions as: Hair conditioning (cystine derivative). It is classified as a cosmetic ingredient in our database. CAS number: 14545-08-5 (L-Cystine dimethyl ester) — *verify against your COSING listing*.
Compliance Tools
Check Dimethyl Cystinate compliance across multiple jurisdictions:
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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