Preservative
TRIS(N-HYDROXYPROPYL) HEXAHYDROTRIAZINE
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A hexahydrotriazine biocide that releases formaldehyde. Used in metalworking fluids and some industrial preservatives. Sensitizing and not recommended in modern cosmetics — treat as caution-level.
Skin benefits
- Effective broad-spectrum biocide in industrial fluids
Known concerns
- Formaldehyde donor
- Skin and respiratory sensitizer
- Not recommended for leave-on cosmetics
- H317 sensitization classification
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related preservatives
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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.