Science
Mechanism of Action
This ingredient operates as a quaternized UV-B filter, exhibiting peak UV absorption at 306 nm. Its molecular design, incorporating a betaine-like moiety, imparts increased substantivity and hydrophilic characteristics, ensuring efficient and persistent UV protection on the skin and hair.
Research
Clinical Evidence
Medium confidence15%
Key findings
- 01 At a 15% concentration, it functions as a UV-B filter with UV-absorption properties similar to Octinoxate (Ethylhexyl Methoxycinnamate) and demonstrates superior efficacy compared to Benzophenone-4.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The ingredient exhibits excellent stability across a wide pH range, owing to its inert molecular structure which lacks reactive or easily hydrolyzable functional groups.
Safety
Safety Profile
Methoxycinnamidopropyl Hydroxysultaine boasts an excellent toxicity profile, proving non-irritant to both skin and eyes. It is neither phototoxic nor mutagenic. While registered as a new cosmetic ingredient in the EU, its regulatory status as an officially approved sunscreen filter remains unclear. No specific CIR safety assessment for this exact ingredient has been conducted, though the CIR Expert Panel has evaluated the broader class of 'Alkyl Sultaines'.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Methoxycinnamidopropyl Hydroxysultaine is a valuable UV-B filter with robust stability and broad skin compatibility, offering effective sun protection when properly integrated into cosmetic formulations.
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References
Sources