Science
Mechanism of Action
The extract operates through a five-fold pathway: it provides potent antioxidant defense via tannins and flavonoids, reinforces the skin barrier by upregulating Aquaporin-3 and Occludin proteins, utilizes betulinic acid to soothe inflammation, refines pore structure through natural astringent action, and inhibits elastase to preserve dermal elasticity.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 A 2022 study published in the International Journal of Molecular Sciences demonstrated that even at 0.1%, it significantly improves hydration and Transepidermal Water Loss (TEWL) when paired with synergistic botanicals.
- 02 Usage levels between 1.0% and 5.0% are clinically recognized for providing effective antioxidant protection and barrier reinforcement without sensitization.
Transparency
Dusting Analysis
While it shows gene-regulating activity at 0.1%, many mass-market products include it at 'label-only' concentrations below this threshold. For meaningful barrier support and antioxidant defense, we look for concentrations starting at 1.0%.
The Formula
Formulation
Stability
Aqueous extracts should be incorporated into the water phase below 70°C. Notably, dry triterpene-rich extracts can serve as natural emulsifying stabilizers in water-in-oil systems at higher concentrations.
Synergies
- Empetrum nigrum (Crowberry)
- Hyaluronic acid precursors
- Barrier-repair lipids
Conflicts
- High concentrations of drying alcohols
- Aggressive astringent agents
Safety
Safety Profile
Generally recognized as safe with a low hazard profile. Sensitization is rare and typically only occurs if used at excessive concentrations due to its natural tannin content.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A high-performance botanical that bridges the gap between traditional herbal soothing and modern molecular barrier repair.
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References
Sources