Methacryloyloxypropyl Dimethicone

INCI: APPEARS IN COPOLYMER NAMES SUCH AS LAURYL METHACRYLATE/METHACRYLOYLOXYPROPYL DIMETHICONE COPOLYMER

CAS Number
Not a single CAS (silicone-methacrylate hybrid macromonomer; varies by chain length)
Function
Film forming (as copolymers); silicone-based monomer providing smoothness and water resistance
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - CIR has reviewed dimethicone-based ingredients broadly and found them safe

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Low toxicity profile consistent with dimethicone derivatives; non-comedogenic; biodegradability of silicone segment is limited. Combines the polymerizable methacrylate functionality with a dimethicone (PDMS) chain, enabling incorporation of silicone segments into acrylic copolymer networks for enhanced slip, water repellency, and film flexibility

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Concern Level: High

Frequently Asked Questions

Is Methacryloyloxypropyl Dimethicone safe in cosmetics?

Low toxicity profile consistent with dimethicone derivatives; non-comedogenic; biodegradability of silicone segment is limited. Combines the polymerizable methacrylate functionality with a dimethicone (PDMS) chain, enabling incorporation of silicone segments into acrylic copolymer networks for enhanced slip, water repellency, and film flexibility The EU classifies Methacryloyloxypropyl Dimethicone as "permitted". Safety rating: MODERATE.

Is Methacryloyloxypropyl Dimethicone allowed in the EU?

Methacryloyloxypropyl Dimethicone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methacryloyloxypropyl Dimethicone do in cosmetics?

Methacryloyloxypropyl Dimethicone functions as: Film forming (as copolymers); silicone-based monomer providing smoothness and water resistance. It is classified as a cosmetic ingredient in our database. CAS number: Not a single CAS (silicone-methacrylate hybrid macromonomer; varies by chain length).

What is the Margin of Safety for Methacryloyloxypropyl Dimethicone?

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.

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