Film Former
TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A trithiol crosslinker used in UV-cure nail and lash adhesives. PubChem GHS lists it as a skin/eye irritant and skin sensitizer — handle as a reactive industrial monomer, not a skin actives.
Function
Skin benefits
- Crosslinker for thiol-ene UV-cure systems
- Used in nail / lash adhesives at low %
- Improves film durability
Known concerns
- Skin irritant (H315) and serious eye irritant (H319)
- Skin sensitizer (H317) — allergic contact dermatitis
- Strong sulfur odor; respiratory irritation possible
- Industrial polymer chemical, not a skincare actives ingredient
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related film formers
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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.