Good Cosmetic Ingredient NOAEL Data SCCS/CIR Reviewed

Laureth-50

INCI: LAURETH-50

CAS Number
9002-92-0
Function
Surfactant – emulsifying agent, surfactant – cleansing, fragrance functional
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted – no specific CFR restriction; CIR-reviewed safe when formulated to be non-irritating

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

10 study endpoints found for Laureth-50. 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 >=500 mg/kg bw/day oral rat oral REACH
LOAEL 1000 mg/kg bw/day oral rat oral REACH
NOAEL 1000 mg/kg bw/day oral - oral REACH
NOAEL >=150 mg/kg bw/day oral - oral REACH
NOAEL >=1000 mg/kg bw/day oral - oral REACH
NOAEL >=2000 mg/kg bw/day oral - oral REACH
NOAEL 750 mg/kg bw/day oral - oral REACH
NOAEL 100 mg/kg bw/day oral - oral REACH
NOAEL 300 mg/kg bw/day oral rat oral REACH
NOAEL 300 mg/kg bw/day oral - oral REACH

Safety Opinions

Official safety assessments from the Scientific Committee on Consumer Safety (SCCS) and Cosmetic Ingredient Review (CIR).

cir
Verdict: safe
NOAEL: 1.6 g/kg (oral)

polated from the existing data to support safety. The Panel concluded that the Alkyl PEG ethers are safe as used when formulated to be nonirritating, and the same applies to future alkyl PEG ether cosmetic ingredients that vary from those ingredients recited herein only by the number of ethylene glycol

cir
Verdict: safe
NOAEL: 400 mg/kg (not specified)

polated from the existing data to support safety. The Panel concluded that the Alkyl PEG ethers are safe as used when formulated to be nonirritating, and the same applies to future alkyl PEG ether cosmetic ingredients that vary from those ingredients recited herein only by the number of ethylene glycol

cir
Verdict: safe
NOAEL: 1200 mg/kg (not specified)

polated from the existing data to support safety. The Panel concluded that the Alkyl PEG ethers are safe as used when formulated to be nonirritating, and the same applies to future alkyl PEG ether cosmetic ingredients that vary from those ingredients recited herein only by the number of ethylene glycol

cir
Verdict: safe
NOAEL: 4000 mg/kg (dermal)

polated from the existing data to support safety. The Panel concluded that the Alkyl PEG ethers are safe as used when formulated to be nonirritating, and the same applies to future alkyl PEG ether cosmetic ingredients that vary from those ingredients recited herein only by the number of ethylene glycol

cir
Verdict: safe
NOAEL: 1650 mg/kg bw (not specified)

polated from the existing data to support safety. The Panel concluded that the Alkyl PEG ethers are safe as used when formulated to be nonirritating, and the same applies to future alkyl PEG ether cosmetic ingredients that vary from those ingredients recited herein only by the number of ethylene glycol

Expert Verdict

Potential trace 1,4-dioxane and ethylene oxide from ethoxylation; vacuum stripping controls required

⚠️
Concern Level: Low

Regulatory Flags

fragrance-component eu_children_restricted epa_safer_alternative ifra_fragrance

Frequently Asked Questions

Is Laureth-50 safe in cosmetics?

Potential trace 1,4-dioxane and ethylene oxide from ethoxylation; vacuum stripping controls required The EU classifies Laureth-50 as "permitted". Safety rating: GOOD. 10 toxicological study endpoint(s) are available in our database. This ingredient has been reviewed by cir.

Is Laureth-50 allowed in the EU?

Laureth-50 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Laureth-50 do in cosmetics?

Laureth-50 functions as: Surfactant – emulsifying agent, surfactant – cleansing, fragrance functional. It is classified as a cosmetic ingredient in our database. CAS number: 9002-92-0.

What is the Margin of Safety for Laureth-50?

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 Laureth-50?

The NOAEL (No Observed Adverse Effect Level) for Laureth-50 is >=500 mg/kg bw/day based on a oral study via oral route in rat. A total of 10 study endpoints are available. Source: REACH.

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