Bis-Methoxy PEG-15/PPG-4 Dimethicone

INCI: BIS-METHOXY PEG-15/PPG-4 DIMETHICONE

CAS Number
Not publicly assigned (polymeric silicone copolymer)
Function
Skin conditioning, emollient, emulsifying (silicone-PEG copolymer family)
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes CIR reviewed the broader dimethicone/methicone/substituted-methicone polymer group (2022 amended report); concluded safe in present practices of use when formulated to be non-irritating

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Silicone-PEG copolymer with potential trace 1,4-dioxane and ethylene oxide from ethoxylation; inhalation concern in aerosolized products if particle size <10 µm.

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Concern Level: Low

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is Bis-Methoxy PEG-15/PPG-4 Dimethicone safe in cosmetics?

Silicone-PEG copolymer with potential trace 1,4-dioxane and ethylene oxide from ethoxylation; inhalation concern in aerosolized products if particle size <10 µm. The EU classifies Bis-Methoxy PEG-15/PPG-4 Dimethicone as "permitted". Safety rating: GOOD.

Is Bis-Methoxy PEG-15/PPG-4 Dimethicone allowed in the EU?

Bis-Methoxy PEG-15/PPG-4 Dimethicone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Bis-Methoxy PEG-15/PPG-4 Dimethicone do in cosmetics?

Bis-Methoxy PEG-15/PPG-4 Dimethicone functions as: Skin conditioning, emollient, emulsifying (silicone-PEG copolymer family). It is classified as a cosmetic ingredient in our database. CAS number: Not publicly assigned (polymeric silicone copolymer).

What is the Margin of Safety for Bis-Methoxy PEG-15/PPG-4 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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