Polymethyl/Phenylsilsesquioxane Silicate

INCI: POLYMETHYL/PHENYLSILSESQUIOXANE SILICATE

CAS Number
Not publicly assigned (silicone resin copolymer)
Function
Film forming; skin conditioning; opacifying
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not specifically restricted; covered under CIR polysilsesquioxane safety assessment

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Standard silicone resin profile with no identified safety concerns.

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Concern Level: Low

Frequently Asked Questions

Is Polymethyl/Phenylsilsesquioxane Silicate safe in cosmetics?

Standard silicone resin profile with no identified safety concerns. The EU classifies Polymethyl/Phenylsilsesquioxane Silicate as "permitted". Safety rating: GOOD.

Is Polymethyl/Phenylsilsesquioxane Silicate allowed in the EU?

Polymethyl/Phenylsilsesquioxane Silicate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Polymethyl/Phenylsilsesquioxane Silicate do in cosmetics?

Polymethyl/Phenylsilsesquioxane Silicate functions as: Film forming; skin conditioning; opacifying. It is classified as a cosmetic ingredient in our database. CAS number: Not publicly assigned (silicone resin copolymer).

What is the Margin of Safety for Polymethyl/Phenylsilsesquioxane Silicate?

adequate 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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