Science
Mechanism of Action
Upon exposure to UV radiation in the 330–340 nm range, the molecule undergoes homolytic alpha-cleavage. This process generates reactive benzoyl and alpha-ethoxybenzyl radicals which initiate the cross-linking of unsaturated monomers, effectively transforming liquid formulations into durable, solid polymer matrices.
Research
Clinical Evidence
Medium confidence3%
Key findings
- 01 Evaluated as an effective catalyst in UV-curable nail gels for controlled drug release, demonstrating high reactivity and stability.
- 02 Demonstrated curing speeds 2.5 times faster than standard benzoin in medical-grade methacrylate systems.
Transparency
Dusting Analysis
As a reactive photoinitiator, concentrations below 1% in UV-cured systems may result in incomplete polymerization, while its use in leave-on skincare at any level is often purely for masking purposes and lacks therapeutic justification.
The Formula
Formulation
Stability
Highly light-sensitive; must be stored in opaque or amber containers to prevent premature activation. Stable at room temperature when shielded from UV exposure.
Synergies
- Unsaturated monomers
- Methacrylate-based oligomers
Conflicts
- Strong oxidizing agents
- Strong acids
- Atmospheric oxygen
- UV light
Safety
Safety Profile
Classified as a Category 1 Skin Sensitizer (H317). It is known to cause allergic reactions upon contact and is toxic to aquatic ecosystems.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While technically proficient as a photoinitiator for nail and dental hardware, its high sensitization risk and lack of skin-active benefits make it unsuitable for precision leave-on skincare.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources