Science
Mechanism of Action
This ingredient functions by absorbing specific wavelengths of ultraviolet light, predominantly UVB rays in the 290-320 nm range with a peak absorbance at 310 nm, and offering some coverage in the UVA II spectrum (320-340 nm). This absorption mechanism converts harmful UV energy into less damaging forms, thereby protecting skin from sunburn and mitigating photoaging. Furthermore, research suggests it may act as a free radical scavenger, contributing to antioxidant defense, and could exhibit anti-inflammatory effects.
Research
Clinical Evidence
High confidence10%
Key findings
- 01 Approved in the European Union as a UV filter for topical formulations at concentrations up to 10% to provide protection against UVB and some UVA II radiation (Regulation (EC) No. 1223/2009 Annex VI).
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Isoamyl p-Methoxycinnamate is a liquid UVB absorber at room temperature, demonstrating good photostability. However, the pH of the formulation is an influential factor that can impact its degradation.
Safety
Safety Profile
Approved for use in cosmetic products in the European Union at concentrations up to 10%. It is currently not approved by the FDA for use in sunscreen products in the United States. The ingredient is listed on the CoRAP in the EU, indicating it is undergoing substance evaluation. While generally considered safe, individuals with highly sensitive skin may experience allergic reactions, skin irritation, or itching, making a preliminary skin patch test advisable.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Isoamyl p-Methoxycinnamate is a valuable UV filter, offering effective protection against UVB and some UVA II rays, with additional potential antioxidant and anti-inflammatory benefits, though regional regulatory status and sensitivity for some skin types warrant consideration.
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