Science
Mechanism of Action
This ingredient operates as an ultraviolet light absorber, transforming absorbed UV radiation into thermal energy, thereby reducing its potential to harm the skin. It demonstrates broad-spectrum activity, effectively absorbing both UVA and UVB rays, with a specific efficacy against UVA II wavelengths (320-350 nm) and a peak absorption at 335 nm. Additionally, it serves as a light stabilizer, protecting cosmetic formulations and their active components from deterioration caused by UV exposure.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 The Scientific Committee on Cosmetic Products and Non-Food Products Intended for Consumers (SCCNFP) concluded that using this ingredient as a UV light absorber in cosmetic products, up to a maximum concentration of 10%, poses no health hazard. This assessment found no evidence of allergenicity, irritation, genotoxicity, or toxicity following acute, subchronic, or chronic administration.
- 02 A common recommended dosage range for effective formulation is between 0.5% and 2%.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient is a highly effective and photostable UVA II absorber, meaning it maintains its efficacy even after prolonged exposure to sunlight. It exhibits excellent thermal stability and oxidation resistance, rendering it suitable for high-temperature processing during cosmetic manufacturing. It can form water-soluble salts upon the addition of a base.
Safety
Safety Profile
Acknowledged for its favorable safety profile, the European Commission's SCCNFP has concluded that concentrations up to 10% as a UV absorber in cosmetic products do not present a health risk. It has been approved for use as a UV filter in Europe, Brazil, and South Africa at a maximum concentration of 10%, and in South Korea and Japan without a specified upper limit (though manufacturers register finished formulations). While it can be used in other cosmetic and personal care products in the US to protect the product or hair, the FDA has not yet reviewed its safety and efficacy for direct sunscreen drug product use.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This photostable, broad-spectrum UV absorber is a valuable ingredient for comprehensive daily sun protection and product stability, offering a favorable safety profile across multiple global regulatory bodies.
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