Good Cosmetic Ingredient

Silica Dimethyl Silylate

INCI: SILICA DIMETHYL SILYLATE

CAS Number
67762-90-7
Function
rheology modifier, thickener, oil-phase structurant, anticaking agent
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not subject to FDA pre-market approval for cosmetic use. Not a sunscreen active ingredient. CIR Expert Panel concluded in 2013 that silica dimethyl silylate is safe as used when formulated and delivered in the final product not to be irritating or sensitizing to the respiratory tract.

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Silica Dimethyl Silylate is permitted under EU Regulation (EC) No 1223/2009 and considered safe as used by the CIR Expert Panel for conventional forms, provided the ingredient does not irritate or sensitize the respiratory tract; nano-form safety data is insufficient.

⚠️
Concern Level: Low

Regulatory Flags

eu-unrestricted cir-approved sccs-opinion non-sensitizing epa_safer_alternative fda_food_additive

Frequently Asked Questions

Is Silica Dimethyl Silylate safe in cosmetics?

Silica Dimethyl Silylate is permitted under EU Regulation (EC) No 1223/2009 and considered safe as used by the CIR Expert Panel for conventional forms, provided the ingredient does not irritate or sensitize the respiratory tract; nano-form safety data is insufficient. The EU classifies Silica Dimethyl Silylate as "permitted". Safety rating: GOOD.

Is Silica Dimethyl Silylate allowed in the EU?

Silica Dimethyl Silylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Silica Dimethyl Silylate do in cosmetics?

Silica Dimethyl Silylate functions as: rheology modifier, thickener, oil-phase structurant, anticaking agent. It is classified as a cosmetic ingredient in our database. CAS number: 67762-90-7.

What is the Margin of Safety for Silica Dimethyl Silylate?

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.

Compliance Tools

Check Silica Dimethyl Silylate compliance across multiple jurisdictions:

🔬
Ingredient Decoder
Paste a full ingredient list for instant analysis
 🌸
82 Allergen Checker
Check for EU declarable fragrance allergens
 🧪
Substance Compliance
Check compliance across 55 jurisdictions
 🧮
MoS Calculator
Calculate Margin of Safety using SCCS methodology
 ⚗️
Heavy Metal Limits
Compare limits across jurisdictions

Related Ingredients

Arrowroot Powder
Excellent
Sodium Polyacryloyldimethyl Taurate
Good
Sodium Alginate
Excellent
Ceratonia Siliqua Gum
Excellent
Polyquaternium-37
Excellent
Browse all 30,000+ ingredients →
📱

Is Silica Dimethyl Silylate in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Silica Dimethyl Silylate in your formulation.

Ingredient Decoder MoS Calculator