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QUATERNIUM-75

52

Safety score · 0–100

Moderate

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

Quaternium-75 is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Quaternium-75 is a tetrafunctional quaternary ammonium salt classified under EU CosIng with antistatic and conditioning functions. Quaternary ammonium compounds (QACs) are subject to review under EU REACH for aquatic toxicity and skin sensitisation potential. While not listed on EU Annex II (banned substances), certain QACs are under evaluation for restriction due to environmental concerns. Skin sensitisation is the primary human health concern, particularly for leave-on products at high concentrations.

Skin benefits

  • Effective hair conditioning and antistatic properties
  • Improves skin feel in formulations
  • Provides soft after-feel

Known concerns

  • Skin and eye irritation potential
  • Mild skin sensitisation reported for some quaternary ammonium compounds
  • Aquatic toxicity concern under EU REACH review

References

EU

EU CosIng database

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

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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.