Conditioning Agent
TRIS-HEA/HDI ISOCYANURATE TRIMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
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
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 CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related conditioning agents
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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.