Science
Mechanism of Action
Functions through dual pathways: high levels of tannins and polyphenols neutralize free radicals for antioxidant protection, while film-forming properties create a barrier that reduces trans-epidermal water loss and maintains optimal skin pH. Active constituents including lupenone and lupeol contribute anti-inflammatory and soothing effects.
Research
Clinical Evidence
Medium confidence3%
Key findings
- 01 Demonstrated significant improvement in skin barrier function and hydration in vivo testing
Transparency
Dusting Analysis
Research shows over 90% of products use this ingredient at meaningful concentrations of 3% or less, indicating genuine formulation rather than label decoration
The Formula
Formulation
Stability
Achieves peak stability in slightly acidic conditions (pH 4.5-5.5) that complement skin's natural pH. Enhanced stability when combined with antioxidants like Vitamin E or chelating agents.
Synergies
- Vitamin E
- chelating agents
- copper salts for photoprotection
Conflicts
- alkaline environments above pH 7.0
- high concentrations of iron salts
Safety
Safety Profile
Listed in Health Canada NHPID database. Recent assessments note potential concerns with triterpenoid components at high systemic doses, but topical cosmetic concentrations ≤3% considered low risk.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A well-tolerated botanical antioxidant that delivers meaningful barrier support and conditioning benefits across all skin types at clinically relevant concentrations.
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