Moderate Cosmetic Ingredient NOAEL Data

Cetoleth-25

INCI: CETOLETH-25

CAS Number
68920-66-1
Function
Surfactant — emulsifying, cleansing
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not restricted; has reported cosmetic use per CIR data profile

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.

Toxicological Studies

2 study endpoints found for Cetoleth-25. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 1000 mg/kg bw/day oral - oral REACH
NOAEL 300 mg/kg bw/day oral - oral REACH

Expert Verdict

Surfactant with potential residual contaminants (1,4-dioxane and ethylene oxide) requiring appropriate manufacturing controls.

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Concern Level: Moderate

Frequently Asked Questions

Is Cetoleth-25 safe in cosmetics?

Surfactant with potential residual contaminants (1,4-dioxane and ethylene oxide) requiring appropriate manufacturing controls. The EU classifies Cetoleth-25 as "permitted". Safety rating: MODERATE. 2 toxicological study endpoint(s) are available in our database.

Is Cetoleth-25 allowed in the EU?

Cetoleth-25 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Cetoleth-25 do in cosmetics?

Cetoleth-25 functions as: Surfactant — emulsifying, cleansing. It is classified as a cosmetic ingredient in our database. CAS number: 68920-66-1.

What is the Margin of Safety for Cetoleth-25?

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.

What is the NOAEL for Cetoleth-25?

The NOAEL (No Observed Adverse Effect Level) for Cetoleth-25 is 1000 mg/kg bw/day based on a oral study via oral route in rat. A total of 2 study endpoints are available. Source: REACH.

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