Science
Mechanism of Action
Functions through high concentrations of lignans and flavonoids that inhibit NF-κB inflammatory pathways, reducing pro-inflammatory cytokines like IL-1β. Simultaneously acts as a tyrosinase inhibitor to regulate melanin production while serving as a potent free radical scavenger, protecting against oxidative cellular damage and senescence.
Research
Clinical Evidence
Medium confidence1%
Key findings
- 01 Placebo-controlled study (n=10) showing 34% increase in collagen synthesis and 35% wrinkle volume reduction at 0.5-2% concentration
- 02 In vitro fibroblast study demonstrating 62% inhibition of cellular senescence markers at 0.5%
- 03 Double-blind psoriasis trial showing 40% improvement in localized inflammation at 2%
Transparency
Dusting Analysis
Given the demonstrated efficacy at 0.5% minimum and the need for sufficient polyphenol content, concentrations below 0.1% are likely insufficient for meaningful biological activity.
The Formula
Formulation
Stability
Highly oxidation-sensitive due to polyphenol content; requires light-protected storage at cool temperatures and antioxidant stabilization
Synergies
- tocopherol
- ascorbic acid
- other antioxidants
Conflicts
- strong oxidizing agents
- highly alkaline ingredients
Safety
Safety Profile
Wood and bark extracts show better safety profile than needle/cone oils which have SCCS restrictions due to peroxide sensitization. Non-cytotoxic in cellular studies.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Well-researched botanical with measurable anti-aging and brightening effects, though limited by small study sizes and formulation sensitivity requirements.
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References
Sources