Other
METHOXY PEG-226 ETHYLAMINO POLY(LEUCINE/BENZYL GLUTAMATE)
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A synthetic peptide-polymer hybrid designed as a film-forming and conditioning agent, used in high-end skincare and hair care formulations.
This ingredient is a pegylated block copolymer combining leucine and benzyl glutamate amino acid units with a methoxy PEG-226 tail, serving as a film-forming agent and emulsifier in cosmetic formulations. The polyethylene glycol chain improves solubility and skin feel while the polypeptide backbone provides substantive film formation. EU regulations do not restrict PEG-ylated polymers per se; however, the SCCS has noted that PEG-ylates must be produced without residual ethylene oxide above technically unavoidable levels. The benzyl glutamate component is structurally related to permitted cosmetic amino acid derivatives.
Skin benefits
- Film-forming agent improves long-wear properties
- Conditions and smooths skin surface
- Can help deliver active ingredients
Known concerns
- Ethylene oxide impurity risk must be controlled per SCCS opinion
- Potential skin irritation in very sensitive individuals
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related others
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.