Lauryl Trimethicone

INCI: LAURYL TRIMETHICONE

CAS Number
139614-44-1
Function
Skin conditioning / emollient — silicone-based trisiloxane with C12 alkyl chain
Safety Rating
EXCELLENT

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — FDA UNII: 5OHO78HI1D; not restricted under 21 CFR

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Cyclotetrasiloxane (D4) contamination possible; verify D4/D5 levels are below EU Annex III limits (0.1% rinse-off).

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Concern Level: Low

Frequently Asked Questions

Is Lauryl Trimethicone safe in cosmetics?

Cyclotetrasiloxane (D4) contamination possible; verify D4/D5 levels are below EU Annex III limits (0.1% rinse-off). The EU classifies Lauryl Trimethicone as "permitted". Safety rating: EXCELLENT.

Is Lauryl Trimethicone allowed in the EU?

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

What does Lauryl Trimethicone do in cosmetics?

Lauryl Trimethicone functions as: Skin conditioning / emollient — silicone-based trisiloxane with C12 alkyl chain. It is classified as a cosmetic ingredient in our database. CAS number: 139614-44-1.

What is the Margin of Safety for Lauryl Trimethicone?

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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