Methoxycinnamidopropyl Polysilsesquioxane

INCI: METHOXYCINNAMIDOPROPYL POLYSILSESQUIOXANE

CAS Number
Not assigned (CosIng lists "–")
Function
UV absorber; SPF booster for other sunscreen actives
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 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

CIR Expert Panel concluded polysilsesquioxanes safe as used. No specific MoS or SCCS opinion for this exact INCI. Potential for unreacted methoxycinnamoyl monomer residuals should be assessed.

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Concern Level: Low

Frequently Asked Questions

Is Methoxycinnamidopropyl Polysilsesquioxane safe in cosmetics?

CIR Expert Panel concluded polysilsesquioxanes safe as used. No specific MoS or SCCS opinion for this exact INCI. Potential for unreacted methoxycinnamoyl monomer residuals should be assessed. The EU classifies Methoxycinnamidopropyl Polysilsesquioxane as "permitted". Safety rating: GOOD.

Is Methoxycinnamidopropyl Polysilsesquioxane allowed in the EU?

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

What does Methoxycinnamidopropyl Polysilsesquioxane do in cosmetics?

Methoxycinnamidopropyl Polysilsesquioxane functions as: UV absorber; SPF booster for other sunscreen actives. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (CosIng lists "–").

What is the Margin of Safety for Methoxycinnamidopropyl 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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