Hair Conditioning
POLYQUATERNIUM-19
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A cationic conditioning polymer used in hair care. Excellent substantivity and detangling. Mild on skin; not biodegradable, with some aquatic toxicity.
Function
Skin benefits
- Cationic conditioning polymer
- Substantive to hair and damaged skin
- Anti-static and detangling
- Stable in many surfactant systems
Known concerns
- Quaternary ammonium polymer — mild eye irritation possible
- Not readily biodegradable
- Aquatic toxicity potential
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related hair conditionings
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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.