Cationic conditioning polymer
HYDROXYETHYL PEI-1000
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A cationic polyethyleneimine-based conditioning polymer used in hair and skin formulas. It boosts substantivity, but cationic PEIs can irritate eyes and raise aquatic concerns, so use levels are typically kept low.
Skin benefits
- Cationic polymer used as a conditioning and film-forming agent
- Improves substantivity on skin and hair
- Helps stabilize emulsions and pigments
- Useful in hair-care for damage-repair claims
Known concerns
- Polyethyleneimines can carry residual reactive amines
- Cationic polymers can cause eye irritation
- Limited public safety dossier for cosmetic use
- Environmental aquatic toxicity reported for some PEIs
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related cationic conditioning polymers
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.