Methoxycinnamidopropyl/Phenyl Polysilsesquioxane

INCI: METHOXYCINNAMIDOPROPYL/PHENYL POLYSILSESQUIOXANE

CAS Number
Not publicly established
Function
UV absorber; film former (silicone polymer with pendant UV-absorbing groups)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted for cosmetic use; not an OTC sunscreen monograph active

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

Limited published data specific to this copolymer. CIR class review covers polysilsesquioxanes generally but did not specifically evaluate this INCI. Read-across from related ingredients may be justified but requires documentation.

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Concern Level: Moderate

Frequently Asked Questions

Is Methoxycinnamidopropyl/Phenyl Polysilsesquioxane safe in cosmetics?

Limited published data specific to this copolymer. CIR class review covers polysilsesquioxanes generally but did not specifically evaluate this INCI. Read-across from related ingredients may be justified but requires documentation. The EU classifies Methoxycinnamidopropyl/Phenyl Polysilsesquioxane as "permitted". Safety rating: MODERATE.

Is Methoxycinnamidopropyl/Phenyl Polysilsesquioxane allowed in the EU?

Methoxycinnamidopropyl/Phenyl Polysilsesquioxane EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methoxycinnamidopropyl/Phenyl Polysilsesquioxane do in cosmetics?

Methoxycinnamidopropyl/Phenyl Polysilsesquioxane functions as: UV absorber; film former (silicone polymer with pendant UV-absorbing groups). It is classified as a cosmetic ingredient in our database. CAS number: Not publicly established.

What is the Margin of Safety for Methoxycinnamidopropyl/Phenyl Polysilsesquioxane?

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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