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QUATERNIUM-73

CAS 15763-48-1
60

Safety score · 0–100

Fine

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

Quaternium-73 is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Quaternium-73 is a quaternary ammonium compound (QAC) that functions as an antimicrobial agent and preservatives system component in cosmetic formulations. QACs have been used for decades in cosmetics but have come under increased regulatory scrutiny in the EU due to concerns about skin sensitization, potential endocrine disruption at high exposures, and environmental impact on aquatic organisms. The compound is not specifically listed in EU Annexes, but its use must comply with general cosmetic safety requirements under Regulation (EC) No 1223/2009.

Skin benefits

  • Antimicrobial preservative

Known concerns

  • Skin sensitization in susceptible individuals
  • Environmental aquatic toxicity concerns
  • Limited toxicity data available

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.