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Conditioning Agent

TRIS-HEA/HDI ISOCYANURATE TRIMER

60

Safety score · 0–100

Fine

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

A urethane acrylate oligomer (HDI isocyanurate trimer with HEA) used in nail conditioning. Provides strong adhesion; the main safety concern is residual HDI monomer, a well-documented respiratory sensitizer.

Function

NAIL CONDITIONING

Skin benefits

  • Nail conditioning and strengthening
  • Improves nail flexibility and chip resistance
  • Urethane chemistry provides durable adhesion
  • Polymer form limits skin penetration

Known concerns

  • Residual HDI is a documented respiratory sensitizer
  • Residual HEA is a skin sensitizer
  • EU restricts free HDI monomer levels
  • Uncured material has acute respiratory hazard
  • Microplastic persistence

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.