Hydrogen Silsesquioxane Resin

INCI: HYDROGEN SILSESQUIOXANE RESIN

CAS Number
134141-38-1
Function
Film former, skin conditioning agent
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR: 18 polysilsesquioxanes assessed as safe as used (2017 Final Report)

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

Inhalation exposure concern for spray/powder products.

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Concern Level: Low

Frequently Asked Questions

Is Hydrogen Silsesquioxane Resin safe in cosmetics?

Inhalation exposure concern for spray/powder products. The EU classifies Hydrogen Silsesquioxane Resin as "permitted". Safety rating: GOOD.

Is Hydrogen Silsesquioxane Resin allowed in the EU?

Hydrogen Silsesquioxane Resin EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Hydrogen Silsesquioxane Resin do in cosmetics?

Hydrogen Silsesquioxane Resin functions as: Film former, skin conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: 134141-38-1.

What is the Margin of Safety for Hydrogen Silsesquioxane Resin?

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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