Science
Mechanism of Action
Functions as a broadband ultraviolet radiation absorber that intercepts UVA and UVB rays, converting them into negligible thermal energy. This process prevents the photo-oxidation and photolysis of fragile molecules like vitamins and fragrances, while also protecting the structural viscosity of gel-based formulas.
Research
Clinical Evidence
High confidence0.1%
Key findings
- 01 Demonstrated superior efficacy over Diethylhexyl 2,6-Naphthalate in preventing the UV-induced breakdown of Retinol, Tocopherol, and chemical UV filters.
- 02 A 0.05% concentration within a complex showed significant improvements in skin hydration levels and protection against biological damage triggered by UVB exposure.
Transparency
Dusting Analysis
This ingredient is effective at extremely low concentrations (typically 0.05% to 0.1%). It is rarely 'dusted' because its purpose is functional stability rather than a primary marketing claim; however, concentrations below 0.01% may be insufficient for providing meaningful formula protection.
The Formula
Formulation
Stability
Exhibits exceptional thermal and photostability; it is non-ionic and maintains effectiveness across a wide pH spectrum. It prevents UV-induced thinning in acrylate-based systems.
Synergies
- Retinol
- Vitamin E
- Octyl Methoxycinnamate
- Synthetic Colorants
Conflicts
- Pure water-based systems without solubilizers
- High concentrations of anionic surfactants
Safety
Safety Profile
While not yet formally reviewed by the CIR, it is globally recognized as a low-risk additive (Risk Score 1) and is regulated for use in the EU and Australia as a functional stabilizer.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential auxiliary ingredient for maintaining the clinical potency of light-sensitive actives like Vitamin A and ensuring formula longevity.
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References
Sources