Undeceth-8

INCI: UNDECETH-8

CAS Number
34398-01-1 (undeceth PEG ether series; n≈8)
Function
Surfactant (cleansing, emulsifying), skin conditioning, emollient
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted for cosmetic use

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Same ethoxylation concerns as Undeceth-7: 1,4-dioxane/EO residual testing required

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Concern Level: Low

Frequently Asked Questions

Is Undeceth-8 safe in cosmetics?

Same ethoxylation concerns as Undeceth-7: 1,4-dioxane/EO residual testing required The EU classifies Undeceth-8 as "permitted". Safety rating: GOOD.

Is Undeceth-8 allowed in the EU?

Undeceth-8 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Undeceth-8 do in cosmetics?

Undeceth-8 functions as: Surfactant (cleansing, emulsifying), skin conditioning, emollient. It is classified as a cosmetic ingredient in our database. CAS number: 34398-01-1 (undeceth PEG ether series; n≈8).

What is the Margin of Safety for Undeceth-8?

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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