Science
Mechanism of Action
This extract operates through a multi-pathway approach, primarily inhibiting the MAPK/NF-κB and STAT-1 signaling pathways to suppress pro-inflammatory cytokine production (IL-6, IL-8). Additionally, it modulates the NLRP3 inflammasome to mitigate skin sensitivity and acts as a competitive tyrosinase inhibitor to interrupt the melanogenesis process, leading to a more uniform skin tone.
Research
Clinical Evidence
High confidence0.2%
Key findings
- 01 In vitro testing demonstrated that a 0.2% concentration outperformed arbutin (97.5% inhibition) in reducing tyrosinase activity and melanin synthesis.
- 02 Research indicates that concentrations between 0.1% and 0.5% significantly reduce atopic-related cytokines, including IL-8 and TARC, in human keratinocytes.
Transparency
Dusting Analysis
Because botanical extracts are often marketed for their 'natural' appeal, many formulas include them at trace amounts (<0.05%) for label claims. However, clinical data suggests a threshold of at least 0.1% is required to trigger its anti-inflammatory and brightening benefits.
The Formula
Formulation
Stability
While the extract maintains structural integrity across a broad pH range (2.3–7.6), antioxidant capacity is best preserved in slightly acidic environments typical of healthy skin. It is frequently processed in hydro-glycolic or ethanol-water systems.
Synergies
- Niacinamide
- Vitamin C
- Panthenol
Conflicts
- Strong oxidizing agents
- Heavy metal ions (risk of flavonoid complexation)
Safety
Safety Profile
While not yet formally reviewed by the CIR, its long history in traditional medicine and modern patch tests on related species suggest a high safety profile with no significant irritation recorded at standard usage levels.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptional botanical multitasker that rivals synthetic brighteners like arbutin while providing deep-tissue soothing for reactive skin types.
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References
Sources