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Hair Conditioning

POLYQUATERNIUM-45

CAS 221225-18-9
76

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A cationic conditioning polymer (a polyquaternium) that clings to hair, softens it, and reduces static and flyaways. Common, well-tolerated class with the typical mild eye-irritation caveat shared by all positively charged hair conditioners.

Function

ANTISTATICFILM FORMINGHAIR FIXING

Skin benefits

  • Hair conditioning — reduces static and frizz
  • Forms thin films that improve manageability
  • Substantive to damaged hair

Known concerns

  • Cationic quats can mildly irritate eyes in rinse-off
  • Limited absorption due to polymer size

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related hair conditionings

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BEHENYL METHACRYLATE/ETHYLAMINE OXIDE METHACRYLATE COPOLYMER
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CHITOSAN RICE BRANAMIDE HYDROXYPROPYLTRIMONIUM CHLORIDE
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DIMETHICONE PG-DIETHYLMONIUM CHLORIDE
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DIMETHYL DICAPROYL CYSTINATE
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DIRAPESEEDOYLETHYL HYDROXYETHYLMONIUM METHOSULFATE
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ETHYLENEDIAMINO PG-PROPYL PEG-4 DIMETHICONE
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GALACTOARABINAN HYDROXYPROPYLTRIMONIUM CHLORIDE
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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.