Skip to content

Hair Conditioning

POLYQUATERNIUM-99

Updated
68

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 for anti-static and wet-comb benefits. Standard polyquaternium safety profile: low-irritation in rinse-off, mild eye caution.

Function

FILM FORMING

Skin benefits

  • Conditioning cationic polymer
  • Substantive on hair, anti-static
  • Improves wet combing

Known concerns

  • Quaternary ammonium can mildly irritate eyes
  • Limited public CIR review for this PQ number
  • Possible scalp build-up

References

EU

EU CosIng database

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

Related hair conditionings

68
AMP-ISOSTEAROYL HYDROLYZED CORN PROTEIN
Hair Conditioning
 68
BEHENAMIDOPROPYL ETHYLDIMONIUM ETHOSULFATE
Hair Conditioning
 68
BIOTINOYL TRIPEPTIDE-1
Hair Conditioning
 68
BIS-(ETHYL PPG-3 BEHENATE) DIMONIUM METHOSULFATE
Hair Conditioning
 68
BIS-(ISOSTEAROYL/OLEOYL ISOPROPYL) DIMONIUM METHOSULFATE
Hair Conditioning
 68
BIS-AMINOETHOXYETHANE/GUANIDINE HCL COPOLYMER
Hair Conditioning
 68
BIS-DIISOPROPANOLAMINO-PG-PROPYL DIMETHICONE/BIS-ISOBUTYL PEG-14 COPOLYMER
Hair Conditioning
 68
BIS-ISOBUTYL PEG-14/AMODIMETHICONE COPOLYMER
Hair Conditioning

Check your shelf

Find POLYQUATERNIUM-99 in your products.

Scan any cosmetic product with LuxSense to see if it contains POLYQUATERNIUM-99 and get a full ingredient breakdown with safety scores.

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.