Science
Mechanism of Action
Functions through dual pathways of cellular protection and regeneration. The extract's polyphenolic compounds inhibit tyrosinase enzyme activity to reduce melanin production while simultaneously blocking pro-inflammatory cytokines like IL-1. Additionally, it stimulates fibroblast activity to enhance collagen and elastin synthesis, and provides cellular anti-aging benefits by inhibiting beta-galactosidase, a key marker of cellular senescence.
Research
Clinical Evidence
High confidence1%
Transparency
Dusting Analysis
Effective concentrations start at 0.5%, making sub-0.1% concentrations likely ineffective dusting amounts
The Formula
Formulation
Stability
Heat-stable up to 100°C but susceptible to oxidation. Requires monitoring of peroxide levels to prevent sensitization. Often standardized to specific polyphenol content for consistency.
Synergies
- Vitamin C
- Niacinamide
- Other botanical antioxidants
Conflicts
- Strong oxidizing agents
- Ingredients with high peroxide content
Safety
Safety Profile
EU regulated under Annex III. Peroxide value must remain below 10 mmoles/L. Cosmetic applications typically use concentrations well below 2%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A clinically-backed botanical with impressive anti-aging and brightening efficacy, suitable for all skin types with minimal irritation potential.
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