Methoxy PEG-8 Propyltrimethoxysilane

INCI: METHOXY PEG-8 PROPYLTRIMETHOXYSILANE

CAS Number
Not widely registered (niche silane-PEG hybrid)
Function
Skin conditioning, surface modification agent (structural inference - PEG-silane coupling agent)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - not prohibited or restricted

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

Very limited standalone safety data; falls within broader alkoxy polysiloxane and PEG safety assessments; trimethoxysilane groups hydrolyze to silanol. Bifunctional molecule - the trimethoxysilane end binds to inorganic surfaces (TiOโ‚‚, ZnO, mica) while the PEG-8 chain provides hydrophilicity; used for hydrophilic surface treatment of mineral UV filters and pigments

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Concern Level: Moderate

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is Methoxy PEG-8 Propyltrimethoxysilane safe in cosmetics?

Very limited standalone safety data; falls within broader alkoxy polysiloxane and PEG safety assessments; trimethoxysilane groups hydrolyze to silanol. Bifunctional molecule - the trimethoxysilane end binds to inorganic surfaces (TiOโ‚‚, ZnO, mica) while the PEG-8 chain provides hydrophilicity; used for hydrophilic surface treatment of mineral UV filters and pigments The EU classifies Methoxy PEG-8 Propyltrimethoxysilane as "permitted". Safety rating: MODERATE.

Is Methoxy PEG-8 Propyltrimethoxysilane allowed in the EU?

Methoxy PEG-8 Propyltrimethoxysilane EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methoxy PEG-8 Propyltrimethoxysilane do in cosmetics?

Methoxy PEG-8 Propyltrimethoxysilane functions as: Skin conditioning, surface modification agent (structural inference - PEG-silane coupling agent). It is classified as a cosmetic ingredient in our database. CAS number: Not widely registered (niche silane-PEG hybrid).

What is the Margin of Safety for Methoxy PEG-8 Propyltrimethoxysilane?

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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