Science
Mechanism of Action
Operates as a Type I photoinitiator that triggers rapid polymerization when exposed to UV radiation (250-450 nm). The molecule undergoes unimolecular bond cleavage to generate free radicals, which subsequently transform liquid monomers into a solid, cross-linked polymer matrix.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 OECD Guideline 404/405 testing demonstrated low skin irritation but noted reversible eye irritation within 48 hours.
- 02 Toxicological assessments by ECHA identify significant developmental risks, including skeletal variations and reduced fetal weight in animal models.
Transparency
Dusting Analysis
Due to its status as a CMR 1B substance, any presence of this ingredient in topical skincare is considered a significant safety violation rather than mere 'dusting'.
The Formula
Formulation
Stability
Highly reactive and unstable in the presence of UV light and atmospheric oxygen, which inhibits its polymerization efficiency.
Conflicts
- UV radiation
- Atmospheric oxygen
- Strong oxidizing agents
Safety
Safety Profile
Classified as a CMR 1B (Reprotoxic) substance; it is strictly prohibited in cosmetic products within the EU and UK (Annex II) and is reportable under the California Safe Cosmetics Act.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is a known reproductive toxin prohibited for use in skincare, serving functional purposes only in industrial coatings and professional UV-cured nail products.
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References
Sources