Undeceth-40

INCI: UNDECETH-40

CAS Number
34398-01-1 (generic CAS for undecyl alcohol ethoxylates)
Function
Emulsion stabilising, skin conditioning, surfactant (cleansing)
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; CIR (Cosmetic Ingredient Review) has reviewed this ingredient

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

Standard ethoxylation-related concerns (1,4-dioxane/EO residuals) apply but are proportionally lower risk due to high dilution by the long PEG chain

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Concern Level: None

Frequently Asked Questions

Is Undeceth-40 safe in cosmetics?

Standard ethoxylation-related concerns (1,4-dioxane/EO residuals) apply but are proportionally lower risk due to high dilution by the long PEG chain The EU classifies Undeceth-40 as "permitted". Safety rating: EXCELLENT.

Is Undeceth-40 allowed in the EU?

Undeceth-40 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Undeceth-40 do in cosmetics?

Undeceth-40 functions as: Emulsion stabilising, skin conditioning, surfactant (cleansing). It is classified as a cosmetic ingredient in our database. CAS number: 34398-01-1 (generic CAS for undecyl alcohol ethoxylates).

What is the Margin of Safety for Undeceth-40?

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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