Methoxy PEG-125 Amine

INCI: METHOXY PEG-125 AMINE

CAS Number
Not publicly assigned/available
Function
Surfactant, emulsifying (based on its amine-terminated PEG structure)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - no specific prohibition

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Amine-functional PEGs may form nitrosamines in the presence of nitrosating agents - formulators must ensure the product does not contain nitrosating precursors; standard PEG ethoxylation impurity considerations. A very high molecular weight PEG (125 EO units, ~5,500 g/mol) with a terminal amine group; the amine provides cationic character at acidic pH, enabling electrostatic interaction with skin/hair surfaces; often serves as a reactive intermediate for PEG-peptide conjugates

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Concern Level: Moderate

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is Methoxy PEG-125 Amine safe in cosmetics?

Amine-functional PEGs may form nitrosamines in the presence of nitrosating agents - formulators must ensure the product does not contain nitrosating precursors; standard PEG ethoxylation impurity considerations. A very high molecular weight PEG (125 EO units, ~5,500 g/mol) with a terminal amine group; the amine provides cationic character at acidic pH, enabling electrostatic interaction with skin/hair surfaces; often serves as a reactive intermediate for PEG-peptide conjugates The EU classifies Methoxy PEG-125 Amine as "prohibited". Safety rating: MODERATE.

Is Methoxy PEG-125 Amine allowed in the EU?

Methoxy PEG-125 Amine EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Methoxy PEG-125 Amine do in cosmetics?

Methoxy PEG-125 Amine functions as: Surfactant, emulsifying (based on its amine-terminated PEG structure). It is classified as a cosmetic ingredient in our database. CAS number: Not publicly assigned/available.

What is the Margin of Safety for Methoxy PEG-125 Amine?

not established 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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