Science
Mechanism of Action
This ingredient operates via a four-pronged approach: it inhibits the PKA/cAMP-responsive binding protein and p38 MAPK signaling pathways to block melanin production at the source; it deposits a protective film of Pullulan and Beta-Glucans to lock in moisture; it suppresses pro-inflammatory cytokines (IL-1α, TNF-α); and it utilizes flavonoid-rich extracts to neutralize oxidative stress.
Research
Clinical Evidence
High confidence1.5%
Key findings
- 01 In vitro analysis demonstrated a 45-65% inhibition of tyrosinase activity at concentrations as low as 0.01-0.03 mg/mL, effectively reducing melanin synthesis.
- 02 A 12-week clinical trial involving subjects with atopic dermatitis showed significant improvement in the SCORAD severity index and trans-epidermal water loss (TEWL).
- 03 Antibacterial screening confirms that a 1.0-1.5% concentration provides potent activity against S. aureus, making it effective for acne-prone and compromised skin.
Transparency
Dusting Analysis
Due to its complex fermentation process and high cost, this ingredient is often used at 'label claim' levels. Formulations requiring therapeutic brightening or barrier repair should utilize at least 1.0% to see measurable results.
The Formula
Formulation
Stability
Maximum stability is achieved at a slightly acidic pH of 5.0-5.5. The ferment is sensitive to thermal degradation and should be added during the cooling phase of production.
Synergies
- Niacinamide
- Hyaluronic Acid
- Vitamin C
Conflicts
- Strong oxidizing agents
- High-proof ethanol (above 20%)
- Extreme pH environments below 3.0 or above 8.0
Safety
Safety Profile
While not formally reviewed by the CIR, its constituent parts are widely used in food science (Hwangchil tea) and Pullulan is recognized as GRAS (Generally Recognized As Safe) by the FDA.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A high-performance multifunctional ferment that excels in brightening and structural skin repair for all skin types.
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References
Sources