Science
Mechanism of Action
This ingredient functions as a multi-pathway biological modulator. It upregulates mRNA expression of Hyaluronan Synthase 1 (HAS1), Aquaporin 3, and Filaggrin to optimize cellular hydration and moisture transport. Simultaneously, it reinforces the physical skin barrier by increasing structural proteins like Claudin 1 and Involucrin while providing antioxidant defense and inhibiting melanin synthesis for a brightening effect.
Research
Clinical Evidence
High confidence1.25%
Key findings
- 01 A 3D epidermal model study demonstrated that a 1.25% concentration significantly enhanced skin water content and HAS1 expression, noting that benefits plateau at higher concentrations.
- 02 Confocal Raman microspectroscopy confirmed that a related ferment filtrate achieves a deep skin penetration level of 8.75% within a four-hour window.
Transparency
Dusting Analysis
Because it is a fermented extract, it is often included at negligible 'claim' amounts (below 1%). However, clinical data indicates that a minimum of 1.25% is required to trigger significant molecular changes in hydration markers.
The Formula
Formulation
Stability
Highly stable in water-based systems. While typically found in aqueous extracts, it can be freeze-dried into a stable powder for anhydrous formulations. Heat sensitivity occurs above 85°C.
Synergies
- Niacinamide
- Hyaluronic Acid
- Ceramides
- Panthenol
Conflicts
- Strong oxidizers
- Extreme heat
Safety
Safety Profile
The source organisms (Aspergillus oryzae and Saccharomyces cerevisiae) are FDA-GRAS rated. The CIR Expert Panel classifies yeast-derived ferments as safe for cosmetic application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly effective bio-active for improving epidermal hydration and barrier integrity, provided it is formulated at the clinically relevant threshold of at least 1.25%.
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References
Sources