Dimethicone/Mercaptopropyl Methicone Copolymer
Regulatory Status
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Safety Data
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Expert Verdict
Copolymer covered under CIR dimethicone/methicone polymer family assessment which concluded safety. The mercaptopropyl (thiol) moiety is chemically reactive and can interact with keratin/proteins; residual thiol content and Pt catalyst levels (<25 ppm) require verification.
Frequently Asked Questions
Is Dimethicone/Mercaptopropyl Methicone Copolymer safe in cosmetics?
Copolymer covered under CIR dimethicone/methicone polymer family assessment which concluded safety. The mercaptopropyl (thiol) moiety is chemically reactive and can interact with keratin/proteins; residual thiol content and Pt catalyst levels (<25 ppm) require verification. The EU classifies Dimethicone/Mercaptopropyl Methicone Copolymer as "permitted". Safety rating: MODERATE.
Is Dimethicone/Mercaptopropyl Methicone Copolymer allowed in the EU?
Dimethicone/Mercaptopropyl Methicone Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Dimethicone/Mercaptopropyl Methicone Copolymer do in cosmetics?
Dimethicone/Mercaptopropyl Methicone Copolymer functions as: Film former; Softener and conditioner. It is classified as a cosmetic ingredient in our database. CAS number: Not individually assigned (complex copolymer).
What is the Margin of Safety for Dimethicone/Mercaptopropyl Methicone Copolymer?
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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